Notice to Owners of Ruger M
Contents
1. To move the point of bullet impact to the right move the sight to the right vt LUBRICATION WARNING Firing a rifle with oil grease or any other material even partially obstructing the bore may result in damage to the rifle and injury to the shooter and those nearby Do not spray or apply lubricants directly on ammunition If the powder SUGGESTED SIGHT PICTURE Top of front sight even with top of rear sight slide Front sight centered in notch of rear sight slide Target bullseye cen tered on top of front sight charge of a cartridge is affected by the lubricant it may not be ignited but the energy from the primer may be sufficient to push the bullet into the bore where it may become lodged Firing a subsequent bullet into the obstructed bore may damage the rifle and cause injury to the shooter and those nearby Use lubricants properly You are responsible for the proper care and maintenance of your firearm BASIC DISASSEMBLY AND REASSEMBLY DISASSEMBLY WARNING Never clean lubricate disassemble or work on a firearm while it or its magazine is loaded CAUTION Before starting disassembly remove sling scope and rings and place the rear sight blade in its down flat position DISASSEMBLY 1 2 Check to ensure that chamber and magazine are clear of ammunition To remove bolt Safety must be off Open bolt and pull to the rear while at the same time pivoting open the bolt stop located on the left sid2. industrv practice The particular caliber for each rifle is rollmarked on the barrel Use cartridges onlv of the designated caliber that is marked on the barrel Please see AMMUNITION NOTICE AMMUNITION WARNING and LOADING WARNING on page 4 3 DANGER AMMUNITION WARNING Firearms may be damaged and death or serious injury to the shooter or other persons may result from any condition which contributes to the generation of excessive pressure or theuncontrolled release of gas within a firearm The fore going adverse conditions can be caused by bore or chamber obstructions pro pellant powder overloads or bv defective incorrect or improperlv loaded and assembled cartridge components It isextremely dangerous to use a cartridge whose pressure is greater than that developed by cartridges loaded to Industrv Standards Even the strongest firearm can be blown up as a result of excessive pressure AMMUNITION CARTRIDGES NOTICE WE SPECIFICALLY DISCLAIM RESPONSIBILITY FOR ANY DAMAGE OR INJURY WHATSOEVER OCCURRING IN CONNECTION WITH OR AS THE RESULT OF THE USE IN RUGER RIFLES OF FAULTY OR NON STANDARD OR REMANUFACTURED OR HAND LOADED RELOADED AMMUNITION OR OF CARTRIDGES OTHER THAN THOSE FOR WHICH THE FIREARM WASORIGINALLY CHAMBERED LOADING WARNING Be certain the primer of each cartridge is seated flush with or below the surface of the cartridge case base A primer discharged by the closing of the bolt can result in a p
3. screw are snugly tightened as described in the Reassembly section of this Manual 2 Be certain the bore is clean and free from accumulated metal fouling deposited by metal jacketed and lead bullets See the cleaning section of this Manual 3 Check the sights for tightness setting and alignment If everything is tight the bore is clean and the sights OK and the accuracy problem persists DO NOT alter the stock bedding in any way Do not scrape away wood and do not bed with glass plastic epoxy etc Once a rifle stock has been altered it cannot be reworked by our Service Department If you have an accuracy problem write a brief letter to the Service Department Newport N H 03773 and describe the nature of the problem based on the use of Factory Loaded cartridges not reloads You will receive a prompt response from us and if indicated detailed instructions with regard to the return of the rifle SERVICE AND PARTS POLICY If you have any question with regard to the performance of your rifle please write to our Newport N H Service Department fully describing the problem If you should return your rifle to the factory for repair or order parts for it please comply with the following suggestions for prompt service SHIPPING FIREARMS FOR REPAIR Ruger M 77 rifles returned to the factory for repair should be sent to Sturm Ruger amp Co Inc Service Department Newport N H 03773 Guns should be sent prepaid We wil
4. 92 and the Magnum magazine box length of 3 34 and in two receiver stvles the Round Top and the Integral Base The Round Top receiver is shaped and tapped to accommodate a wide variety of scope mounts The Integral Base receiver is machined on top to form integral scope mount bases which accommodate the Ruger steel one inch tip off ring mounts A set of two rings is packed with each Integral Base receiver rifle at the factory Ruger scope rings do not come with Round Top receiver models Other notable features of the M 77 rifle are Hand checkered walnut stock patented bedding svstem quick release hinged floor plate long spring tvpe extractor safety located on the receiver tang conveniently located external bolt stop steel trigger and on those models equipped with open sights a ramp gold bead front sight and folding leaf rear sight adjustable for elevation and windage BOLT STOP SCOPE MOUNT BASES integral RECEIVER RECEIVER SAFETY BUTTON BOLT SLEEVE i FLOOR PLATE EXTRACTOR TRIGGER BOLT HANDLE FIRING PIN Disassembly Hole MAGAZINE LATCH FIGURE 1 Components frequently referred to are identified In this illustration the firing pin is shown cocked protruding from the rear of the bolt sleeve revealing the disassembly hole in the lower portion of the firing pin AMMUNITION M 77 rifles are chambered for many of the most efficient and popular factory loaded cartridges manufactured in accordance with U S
5. Trigger Housing Cross Pin 50 D 21 Trigger Pivot Pin 50 D 49 Trigger Return Spring 50 D 51 Trigger Return Spring Seat 50 Must be fitted at the factory Caliber must be specified Required for 458 Caliber rifles only INTERNATIONAL MODEL PARTS The following parts are for the M 77 International Model only and are not inter changeable with corresponding parts for the basic model M 77 The International Model is the rifle with the Mannlicher type stock Part No Part Name Price PartNo Part Name Price D 3M Barrel 72 50 D 06502 Sight Base front 6 25 D 08001 Pistol Grip Cap 75 D 06702 Sight Blade front 2 15 D 00404 Stock 162 75 D 13101 Sling Swivel front 2 50 D 01340 Stock Cap 2 25 D 13000 Sling Swivel Screw 50 D 13200 Stock Cap Screw 50 WARNING TO PARTS PURCHASERS It is the purchaser s responsibility to be absolutely certain that any parts or dered from the factory are correctly fitted and installed Firearms are compli cated mechanisms and IMPROPER FITTING OF PARTS MAY RESULT IN A DANGEROUS MALFUNCTION DAMAGE TO THE FIREARM AND INJURY TO THE SHOOTER AND OTHER PERSONS The purchaser and installer of parts must accept full responsibility for the correct adjustment and functioning of the rifle after such installation 13 NOTE The Mannlicher style stock D 00404 used on the Ruger M 77 Interna tional Model RSI fits only the International Model Neither the stock nor its fittings are interchangeab
6. ZIP Number of M 77 s owned List serial numbers here SINGLE COPIES OF INSTRUCTION MANUALS FOR ALLMODELS OF RUGER FIREARMS ARE AVAILABLE ON REQUEST PLEASE SPECIFYMODELFOR WHICH YOU REQUIRE A MANUAL STURM RUGER amp Company Inc 140 Lacey Place Southport Connecticut 06490 U S A ALL RUGER FIREARMS ARE DESIGNED AND MANUFACTURED IN RUGER FACTORIES IN THE UNITED STATES OF AMERICA INSTRUCTION MANUAL FOR Q RUGER M 77 BOLT ACTION RIFLE NOTE This model out of production For reference use only THIS INSTRUCTION MANUAL SHOULD ALWAYS ACCOMPANY THIS FIREARM AND BE TRANSFERRED WITH IT UPON CHANGE OF OWNERSHIP OR WHEN THE FIREARM JS LOANED OR PRESENTED TO ANOTHER PERSON A COPY OF THE INSTRUCTION MANUAL FOR EACH MODEL RUGER FIREARM IS AVAILABLE FROM THE FACTORY ON REQUEST THESE INSTRUCTION MANUALS CONTAIN IMPORTANT WARNINGS WHICH MUST BE UNDERSTOOD BEFORE USING THESE FIREARMS STURM RUGER and Company Ine Southport Connecticut 06490 U S A ALL RUGER FIREARMS ARE DESIGNED ANO MANUFACTURED IN RUGER FACTORIES IN THE UNITED STATES OF AMERICA D 6 90 R1 FIREARMS SAFET Y YOUR RESPONSIBILITY SAFETY MUST BE THE FIRST AND CONSTANT CONSIDERATION OF EVERY PERSON WHO HANDLES FIREARMS AND AMMUNITION This Instruction Manual is designed to assist you in learning how to use and care for your rifle properly Only when you are certain you fully understand the Manual and can properly carry out its in
7. box If magazine box does not come out readily do not force it It can be lifted out with the barrel receiver assembly but it must be done with great care Lift barrel from the stock very carefully Lift the receiver at the same time as the barrel is lifted so that the barrel receiver assembly comes out of the stock level and not at an angle In the event that further disassembly is required do not disturb the trigger ad justment screw engagement Part D 22 or the trigger adjustment screws over travel Parts D 45 and D 44 See Figure 4 REASSEMBLY l To reassemble firing pin assembly into bolt screw the assembly fully into the bolt The assembly is properly positioned in the bolt when the flat on the bottom left side of the bolt sleeve front of bolt facing you is aligned with the ftat on the bot tom end of the bolt handle Note that there is a shallow notch on the rear end of the bolt body at the end of the cam cut into which the nose of the cocking piece fits When the firing pin assembly is being turned into the bolt body it may be necessary to use the restraining pin as a lever to slightly retract the cocking piece nose so it can be moved into the notch When the firing pin assembly is correctly positioned in the bolt body the restraining pin can be removed But not before 9 2 To replace bolt Place safety in its off position With bolt handle in an upward position and bolt head away from you align the
8. extractor with the right hand locking lug Align the locking lugs with the channels in each side of the rear of the receiver and partially insert the bolt Pivot open the bolt stop Push bolt fully forward Release bolt stop 3 To replace stock First install magazine box on receiver Place barrel action assembly with magazine box in place into stock Replace trigger guard and loosely install screws Install floor plate hinge assembly and firmly tighten screw This screw is angled and draws the barrel action assembly into the bedding surface of the stock Tighten the two trigger guard screws as follows Do not tighten one screw all the way and then tighten the other Instead alternately tighten each one a partial turn at a time so that the screws will be tightened equally until both are snugly tightened On the International Model carefully slide cap onto the end of the stock and install and tighten screw CARE AND CLEANING Before cleaning be certain the rifle and its magazine contain no cartridges A firearm must be free of rust dirt grease and firing residues to function safely and reliably Periodic maintenance which includes inspection of components to determine if they are in proper working order is absolutely essential Basic cleaning equipment includes A correct size Cleaning Rod equipped with bore brushes fiber and brass and a tip in which a cloth patch can be inserted Patches Powder Solvent Lubricant Small lin
9. Firearms and ammunition should be securely locked in racks or cabinets when not in use Ammunition should be safely stored separate from firearms Store your firearms out of sight of visitors and children It is the gun owner s responsibility to be certain that children and persons unfamiliar with firearms cannot gain access to firearms or ammunition 4 BE SURE THEBARREL IS CLEAR OF OBSTRUCTIONS BEFORE SHOOT ING Even a bit of mud snow or excess lubricating oil or grease in the bore may cause the barrel to bulge or even burst on firing and can cause injury to the shooter and bystanders Be sure that you are using ammunition of the proper caliber and loading for the gun you are using If the report or recoil on firing seems weak or doesn t seem quite right CEASE FIRING IMMEDIATELY and check to be sure that no obstruction has become lodged in the barrel 5 BE SURE OF YOUR TARGET BEFORE YOU SHOOT Don t shoot unless you know exactly where your bullet is going to strike Be sure of the bullet stop behind your target even when dry firing with an unloaded gun If you are in the field hunting do not fire at a movement or noise Take the time to be absolutely certain of your target before you pull the trigger 6 WEAR SHOOTING GLASSES AND HEARING PROTECTORS WHEN YOU SHOOT All shooters should wear protective shooting glasses and some form of hearing protectors when shooting Exposure to shooting noise can damage hearing and adequate vision protect
10. Notice to Owners of Ruger M 7 Bolt Action Rifles The trigger overtravel adjustment set screw shown on right in a few of these rifles may not be securely tightened and may move too readily This change in original adjustment can in extreme cases either cause the rifle to fire unex pectedly with the safety off or cause 4 EEE the rifle to not fire at all This may occur Adjustment suddenly without warning Sel Screw m To he replaced Current production rifles have this set screw permanently secured These rifles have a T inscribed on the under side of the bolt handle This condition cannot occur in any of our other firearms such as the 77 22 10 22 No 1 No 3 or the 44 Carbine as their trigger mechanisms differ For your safety we ask that all owners of M 77 rifles except those with a T underneath the bolt handle contact us using the coupon below You will receive a new locking screw that will replace your present over travel adjustment set screw and detailed instructions for quick easy instal lation There is no charge for this service and replacing the screw will have no adverse effect on trigger pull Do not use your M 77 rifle until you have received and installed the replacement screw Please affix to a postcard and mail to Sturm Ruger amp Company Inc Dept M 77 140 Lacey Place Southport Connecticut 06490 NAME Please Print STREET OR P O BOX CITY
11. does not make a normal loud report on firing A misfire or unusual report is always a signal to cease firing and immediately examine the bore of the firearm Inspect the bore visually and with a rod if necessary to be certain it is completely clear of any obstruction THE SAFETY AND ITS OPERATION WARNING THE USER SHOULD NEVER DEPEND ON A SAFETY MECHAN ISM OR ANY OTHER MECHANICAL DEVICE TO JUSTIFY CARELESS HANDLING OR PERMITTING THE RIFLE TO POINT IN AN UNSAFE DIRECTION Figure 2 Figure 3 Safety is Safety is on only off when when it is in safety is in its extreme its extreme rearward forward position position and the and the S is fully F is fully showing showing SAFE FIRE The M 77 safety button can be moved to the safe position S showing only when the firing pin is cocked Fully raising the bolt handle cocks the firing pin The bolt handle can be fully raised and lowered only when safety button is positioned so that the F is showing The cocking piece section of the firing pin protrudes from the rear of the bolt sleeve when the firing pin is cocked as shown in Figure 1 This protrusion serves as a cocking indicator which can be felt as well as seen The bolt handle should be all the way down closed before the safety button is moved to expose the S When the bolt handle is fully closed and the safety button is positioned so the S is showing the bol
12. ds repair is inadequate information Work performed will bear a net minimum labor charge of 5 00 The charge for rebluing the rifle is 20 00 which includes labor WARNING Before shipping any firearm be absolutely certain that it and its magazine are unloaded Do not ship cartridges with a firearm ORDERING PARTS All Ruger M 77 rifle parts orders should be sent to Sturm Ruger amp Co Inc Service Department Newport N H 03773 Payment must accompany order Minimum parts order is 1 00 Order parts by Part Number and Part Name and include the entire serial number of the firearm for which the parts are being ordered Parts designated by an asterisk mus be factory fitted The price shown for these parts does not include the minimum net labor charge of 5 00 After factory fitting of 11 barrel and certain other components the rifle is proof tested with Industry Proof Loads That procedure ensures maximum protection to the gun user All parts in the Parts List marked with an asterisk are factory replaced on an exchange basis only We will not return the replaced parts We will not return modified broken malfunction ing or badly worn parts See Warning To Parts Purchasers page 13 Because it is a serial numbered component the M 77 rifle receiver is defined as a firearm by Federal law and is not sold as a separate component Firearms users are cautioned that a gun containing modified broken mal funct
13. e Basic Rules of Safe Firearms Handling eese 15 Warranty Information se sreenser setiap RET RE ERE eR Y OY Hp e Ue Rap Rd 16 WARNINGS OF GREAT IMPORTANCE ARE FOUND ON THE FOLLOWING PAGES Alteration 2 Handling Ammunition 4 Firing Bore Obstruction 4 Lubrication Loading 4 Parts Purchasers Other Cautions and Warnings Appear Throughout the Manual ALTERATION WARNING Sturm Ruger amp Company Inc will not be responsible for anv alteration of any part of this firearm after it leaves our control or for the addition or substitu tion of parts or accessories not manufactured by Sturm Ruger amp Company Inc This product was designed to function properly in its original condition Any changes made in this product are specifically contrary to our instructions and we expressly do not authorize any changes to be made after manufacture Do not jeopardize vour safety or the safety of others by making modifications to vour firearm RUGER and M 77 are U S registered trademarks Entire contents copyright 1990 by Sturm Ruger amp Company Inc 2 FIREARMS ARE DANGEROUS WEAPONS READ THE INSTRUCTIONS AND WARNINGS IN THIS MANUAL THOROUGHLY AND CAREFULLY BEFORE USING THIS FIREARM THE RUGER M 77 BOLT ACTION RIFLE GENERAL INFORMATION AND MECHANICAL CHARACTEHISTICS The Ruger M 77 is a bolt action magazine fed repeating rifle The M 77 is available in two action lengths the Short Stroke magazine box length of 2
14. e of the receiver Re move bolt from gun To remove firing pin assembly from bolt With bolt out of the rifle and firing pin cocked insert a pin or nail into the disassembly hole as shown in Figure 1 NOTE The pin or nail should be as close as possible in size to the hole diameter and at least 2 inches long so that it can be used to lever the firing pin to the rear when reassembling the firing pin assembly into the bolt Unscrew firing pin assembly and remove from bolt Caution Do not remove the restraining pin until firing pin assembly is reassembled into bolt CAUTION The firing pin assembly is intended to be a permanent assembly and should not be disassembled The parts are under great spring pressure and if dis assembled could fly apart with sufficient force to cause serious injury Also special tools are required to correctly reassemble this part Special note regarding disassembly of the International Model Before attempt ing to remove the stock Mannlicher type as described in paragraph number 4 below first remove the cap screw D 13200 and then the cap D 01340 To Remove Stock Open floor plate and while holding it up out of the way loosen and remove the screw that holds the floor plate hinge assembly Next loosen and remove the screw that is just forward of the trigger guard Next loosen and remove the screw which is to the rear of the trigger guard Remove trigger guard Remove magazine
15. e rings to the receiver with the lugs engaging the recesses in the top surface of the receiver Tighten the clamp nuts so that the rings are locked to the semi circular cuts on the sides of the receiver Rotate the scope until cross hairs are aligned properly and slide scope to desired eye relief Then tighten the eight top screws each a bit at a time to grip the scope body Sight in according to the directions with your scope SIGHT ADJUSTMENT The folding leaf rear sight standard on some models is adjustable for elevation and windage The amount the elevation slide must be moved to change point of impact varies with caliber and load Shooting to determine the slide setting should be done from a bench rest and over a measured distance Use only a small screwdriver with a blade tip that exactly fits the screw head Loosen the screws only slightly so the slide doesn t move too freely When the slide is positioned at the desired height carefully tighten both screws Lateral windage adjustment is made by moving the entire sight within its base To move the sight loosen the slotted screw in the front section of the base until the sight can be moved Position the sight in the desired location and then tighten the slotted screw NOTE The rule of rear sight adjustment is Move the sight in the direction that you want the point of impact of the bullet to move As examples to raise the point of bullet impact raise the elevation slide blade
16. e trigger adjustment screw for engage ment Part D 22 is preset at the factory to provide an essential minimum sear engage ment This screw is for factory adjustment only The minimum weight of pull is established by the trigger return spring Part D 49 This spring should not be modified The weight of pull can be increased beyond this minimum by tightening the adjustment screw for weight of pull D 43 The trigger over travel adjustment screw D 45 is set to a minimum at the factory and should not be further adjusted WARNINCG Be certain rifle is not loaded before working on it 7 ATTACHING RUGER SCOPE RINGS Each Ruger telescope ring is a mated assembly of a top and a base Do not mix the parts of the two ring assemblies as they are not interchangeable On the underside of each mounting ring assembly there is an integral lug located off center with respect to the front and back sides of the mount The lug is nearer to the front surface By reference to the lug the mounting ring can be correctly assembled with the front of the ring toward the muzzle of the rifle Disassemble one ring and reassemble over the scope body between the turret and the eyepiece Note High ring goes on rear mount Low ring on front mount Install the four top screws Do not tighten Disassemble the other ring and install it on the forward section of the scope tube with the lug forwardly also Install the four top screws Again do not tighten Assemble th
17. ered and the bolt handle is down the safety button should be positioned so that the S shows fully See The Safety and its Operation on page 5 Unloading the chamber and magazine WARNING Because the safety must be in the F fire position to open the bolt exercise great care and caution Lift the bolt and pull to the rear to eject chambered cartridge Leave bolt open Push forward the small latch in the front of the trigger guard to open the hinged floor plate and release the cartridges in the magazine Hold the other hand under the floor plate so as to retard the opening of the spring loaded floorplate and catch the cart ridges in the palm of the hand To fire the rifle When a cartridge is chambered and the safety button is positioned so the F is showing pulling squeezing the trigger will discharge the cartridge Always be certain that you know where the bullet will strike when you fire the rifle See Handling Warn ing in this Manual WARNING DO NOT TOUCH THE TRIGGERUNTIL YOU ARE ACTUALLY READY TO FIRE THE RIFLE HANDLING WARNING Do not load the rifle until you are ready to use it and unload it immediately when you have completed shooting Do not chamber a cartridge until you are in the immediate area where you plan to shoot Never carry the rifle loaded with the safety in the fire position The rifle should be carried and handled so it will not be dropped or struck With the safety off the rifle
18. ion when shooting is essential 7 NEVER CLIMB A TREE OR FENCE WITH A LOADED FIREARM Put the firearm down carefully before climbing a fence and unload it before climbing or descending a tree or jumping over a ditch or other obstruction Never pull or push a loaded firearm toward yourself or another person When in doubt unload your gun 15 8 DON T SHOOT AT A HARD SURFACE OR AT WATER Bullets can glance off many surfaces like rocks or the surface of water and travel in unpredictable direc tions with considerable velocity 9 NEVER TRANSPORT A LOADED FIREARM Firearms should always be un loaded before being placed in a vehicle A suitable carrying case or scabbard should be used to carry a firearm to and from the shooting area 10 AVOID ALCOHOLIC BEVERAGES WHEN SHOOTING Don t drink until the day s shooting is over Handling firearms while under the influence of alcohol in any form constitutes a criminal disregard for the safety of others AN EXTRAORDINARY ACHIEVEMENT RUGER FIREARMS One of the few American firearms manufacturers whose management has remained unchanged since starting in business Sturm Ruger amp Company Inc had its begin ning in a small machine shop occupying a rented frame building in Southport Con necticut In January 1949 with an initial investment of only 50 000 and an idea William B Ruger and Alexander M Sturm started production of a 22 caliber auto matic pistol a design which was so successf
19. ioning or badly worn parts should not be fired PARTS LIST AND SUGGESTED RETAIL PRICES Part No Part Name Price D 3 Barrel only specify caliber 62 50 D 3UL Barrel only specify caliber For ULTRA LIGHT MODEL 72 50 66 Barrel Band 5 30 D 86B Barrel Band Screw not illus 50 D 10 Bolt only 49 25 D 35 Bolt Lock 50 D 53 Bolt Stop 5 50 D 56 Bolt Stop Plunger 50 D 57 Bolt Stop Plunger Spring 50 D 59 Bolt Stop Plunger Spring Retaining Pin 50 D 54 Bolt Stop Screw Stud 50 D S5 Bolt Stop Stud Bushing 50 D 8 Ejector 50 D 41 Ejector Retaining Pin 50 p 9 Ejector Spring 50 D 14 Extractor 11 25 D 15 Extractor Band 50 D 11 Firing Pin assembly only 23 00 D 5 Floor Plate 6 75 D 7 Floor Plate Hinge 4 00 D 6 Floor Plate Pivot Pin 50 D 5S Floor Plate STEEL For Long Action Only 25 70 B 5 Forend Escutcheon 2 req d not illus each 50 D 27 Magazine Box 2 50 D 127 Magazine Box Assy 220 Swift only 3 50 D 30 Magazine Follower stainless steel 6 25 D 31 Magazine Latch 1 00 D 40 Magazine Latch Pin 50 D 32 Magazine Latch Spring 50 D 33 Magazine Spring 1 00 C 97 Pistol Grip Cap 75 C 107 Pistol Grip Cap Medallion 50 C 96 Pistol Grip Cap Screw 50 D 46 Receiver Mounting Screw front 50 D 47 Receiver Mounting Screw center 50 D 48 Receiver Mounting Screw rear 50 S 63 Recoil Pad 5 00 D 84 Recoil Pad Screws 2 pair 50 D 38 Safety Button 2 75 D 39 Safety Link 75 D 58 Safety Shaft A
20. is in the ready to fire mode Therefore as in any firearm any blow or jar which is of sufficient force to actuate components of the firing mechanism may cause a chambered cartridge to discharge Such a dis charge can occur with or without the trigger being directly struck or touched Never rest a loaded rifle against any object wall fence vehicle tree etc be cause there is always the possibility that the rifle will be jarred or slide from its position and fall with sufficient force to discharge Never store a firearm in such a manner that it may be pulled from a shelf or hidden place as some other item is moved The shooter should always be alert to the possibility of accidental discharge regardless of the position of the safety The only safe rifle is one in which the bolt is open and the magazine and chamber are empty FIRING WARNING When firing the rifle be sure that other shooters and bystanders are a safe distance to the rear Empty cartridge cases are ejected from the rifle with some velocity and could cause injury to any person in their path All shooters should wear shooting glasses when firing any firearm Hearing protection must also be worn because exposure to shooting noise can damage hearing TRIGGER ADJUSTMENT SET SCREW D 44 OVER TRAVEL Adjustment D 45 yr he p TRIGGER RETURN SPRING D 49 WEIGHT OF PULL Adjustment 0 43 ENGAGEMENT Adjustment D 22 Figure 4 TRIGGER ADJUSTMENT Th
21. l not accept collect shipments The Federal Gun Control Act as well as the laws of most States and localities does not prohibit an individual who is not otherwise barred from purchasing or possessing a firearm from shipping a firearm directly to the manufacturer for repair However before you ship your rifle to us be certain that your State or locality does not have a law or regulation which will prohibit you from receiving the rifle from us after it has been repaired If such receiving is prohibited then please have a Federally Licensed firearms dealer ship the gun to us If your rifle is sent to us by a dealer it will be returned to him after being repaired If a handgun pistol or revolver is shipped by an individual who does not hold a Federal Firearms License it must by shipped via UPS Persons who do not hold a Federal Firearms License are prohibited by Federal law from shipping a handgun by Mail Handguns mailed in violation of the law are impounded by the Post Office Please do not include rifle case sling telescopic sight or custom accessories with a firearm being shipped to the factory for service Rifles and shotguns may be shipped via Parcel Post Always insure your shipment Enclose a letter which includes your name address telephone number and serial number and model of the firearm Describe in detail the trouble you have experienced with your firearm or the work you wish to have done Merely stating that the firearm nee
22. le with corresponding parts of other M 77 models The front sight base D 06502 and blade D 06702 for the International Model are not interchangeable with corresponding parts of other M 77 models The stock for the M 77 Ultra Light Model D 4UL not illustrated below is not in terchangeable with stocks of other M 77 models 0 68 n N 7o a oz 8 90 838 0 76 E oveloa oooera OVOO Q 901s YIHONNNYN 0080d 14 THE BASIC RULES OF SAFE FIREARMS HANDLING We believe that Americans have a right to purchase and use firearms for lawful pur poses The private ownership of firearms in America is traditional but that ownership imposes the responsibility on the gun owner to use his firearms in a way which will ensure his own safety and that of others When firearms are used in a safe and responsible manner they are a great source of pleasure and satisfaction and represent a funda mental part of our personal liberty Firearms do not cause accidents Firearms accidents are almost always found to have been the result of carelessness or ignorance on the part of the shooter of the basic rules of safe gun handling The following rules must be observed by gun users at all times Safe gun handling is not just desirable it is absolutely essential to the continuation of gun ownership and sport shooting as we know it today 1 LEARN THE MECHANICAL AND HANDLING CHARACTERISTICS OF THE FIREARM YOU ARE USING Not all firear
23. ms are the same The method of carrying and handling firearms varies in accordance with the mechanical provisions for avoiding accidental discharge and the various proper procedures for loading and unloading No person should handle any firearm without first having thoroughly famil iarized himself with the particular type of firearm he is using and with safe gun handling in general 2 ALWAYS KEEP THE MUZZLE POINTED IN A SAFE DIRECTION Be sure of the bullet stop behind your target even when dry tiring Never let the muzzle of a firearm point at any part of your body or at another person This is particularly impor tant when loading or unloading a firearm In the event of an accidental discharge no injury can occur as long as the muzzle is pointing in a safe direction A safe direction means a direction which will not permit a discharged bullet to strike a person or to strike an object from which the bullet may ricochet A safe direction must take into account the fact that a bullet may penetrate a wall ceiling floor window etc and strike a person or damage property Make it a habit to know exactly where the muzzle of your gun is pointing whenever you handle it and be sure that you are always in control of the direction in which the muzzle is pointing even if you fall or stumble 3 FIREARMS SHOULD BE UNLOADED WHEN NOT IN USE Firearms should be loaded only when you are in the field or on the target range or shooting area ready to shoot
24. oting to render meaningful public services and to encourage shooters in constructive and responsible participation in the shooting sports Today Sturm Ruger amp Company is particularly mindful of those elements which have contributed to the creation of its success and extends heartfelt thanks to its many loyal employees and customers WHY NO WARRANTY CARD HAS BEEN PACKED WITH THIS NEW RUGER FIREARM The Magnuson Moss Act Public Law 93 637 does not require any seller or manufacturer of a consumer product to give a written warranty It does provide that if a written warranty is given it must be designated as limited or as full and sets minimum standards for a full warranty Sturm Ruger amp Company Inc has elected notto provideany written warranty either limited or full rather than to attempt to comply with the provisions of the Magnuson Moss Act and the regulations issued thereunder There are certain implied warranties under state law with respect to sales of consumer goods As the extent and interpretation of these implied warranties varies from state to state you should refer to your state statutes Sturm Ruger amp Company wishes to assure its customers of its continued interest in providing service to owners of Ruger firearms 16
25. pel the bullet out of the bore 2 A bullet may become lodged in the bore if in unloading an unfired cartridge from the rifle the cartridge case only is removed thus leaving the bullet lodged in the bore The two conditions described above occur most frequently with reloaded ammuni tion but however an obstruction occurs proceed as follows with the rifle pointing in a safe direction Open the bolt and if present extract the cartridge case 4 Any cartridges in the magazine should be removed by releasing the floor plate by pressing on the magazine latch and catching the cartridges as they drop out ofthe opening Insert a proper size cleaning rod without a tip or brush into the bore from the muzzle and remove the bullet If the bullet does not readily dislodge it may be neces sary to lightly tap the handle end of the cleaning rod Do not attempt to remove a lodged bullet using a blank cartridge or a cartridge from which the bullet has been removed or by any means other than the use of a cleaning rod Be certain all loose powder has been removed from the bore and action before inserting the rod After removing the obstruction reinspect the bore to be certain it is free of powder particles or other debris Clean the mechanism of unburned powder grains REMEMBER Always check the bore for an obstruction if you experience diffi culty in chambering a cartridge experience a failure to extract have a misfire or the rifle
26. remature discharge of the cartridge with possible serious injury to the shooter and those nearby Also do not use exceptional force to close the bolt over a cartridge If a cartridge does not chamber readily check the bore and chamber to be certain they are free of obstructions If thev are clear and the cartridge does not chamber readily then check the cartridge to becertain it is the proper caliber and of correct dimensions for the rifle BORE OBSTRUCTIONS WARNING Before loading or shooting the rifle be certain the bore is unobstructed Firing the rifle with any obstruction in the bore may result in severe damage to the rifle and serious injury to the shooter and other persons nearby If you suspect the rifle may have excess oil grease or cosmoline in the barrel or if it may have been exposed to humid conditions which could cause condensation or to rain or snow which might have entered the bore inspect the bore visually to be sure that it is clear A gun user should know that a lodged bullet isa common form of bore obstruction Therefore the following information on how a bullet may become lodged in the bore and how it should be removed deserves careful reading and heeding 1 A bullet may become lodged in the bore if assuming the trigger has been pulled with a live cartridge in the chamber the cartridge contains no powder or the powder fails to ignite and only the primer charge ignites resulting in insufficient force to pro
27. ridges with caliber 220 Swift and 5 cartridges with all other calibers Do not put more cartridges into the magazine than is specified in the foregoing Each M 77 rifle is chambered for a specific caliber Know the caliber of the rifle you are loading and load cartridges of on y that caliber into the rifle If cartridges will not fit into the magazine or will not chamber properly do not force them If you cannot determine why the cartridge will not fit clear the rifle of all cartridges and write to or call the factory Loading the magazine Safety must be off the F showing Lift the bolt handle and pull the bolt rearwardly until it stops against the bolt stop Load cartridges directly into the magazine by pressing one cartridge at a time into the magazine Loading the chamber Safety must be off the F showing After loading the magazine push the bolt handle forward stripping a cartridge from the magazine and pushing the cartridge ahead of the bolt into the chamber Close the bolt and put the safety on S showing To single load Placea cartridge directly into the chamber close the bolt and put the safety on If there are cartridges in the magazine and it is desired to single load a cartridge directly into the chamber depress the top cartridge until the bolt face is well ahead of the rims of the cartridges in the magazine and the bolt will pass over them NOTE Immediately after a cartridge has been chamb
28. ssembly 2 00 D 37 Safety Spring 50 D 23 Sear 2 00 D 42 Sear Pivot Pin 50 D 24 Sear Spring 50 D 71 Scope Ring Assembly std set of two 33 60 D 71H Scope Ring Assembly high set of two 33 60 D 74 Scope Ring Clamp 1 00 12 Part No Part Name Price D 73 Scope Ring Nut 5 D 76 Scope Ring Screw set of 8 1 00 D 68 Sight front Plunger S0 D 69 Sight front Plunger Spring 50 D 65 Sight Base front 12 25 D 70 Sight Base front Set Screw 50 D 67 Sight Blade front 3 00 D 77 Sight rear Folding Complete 5 00 D 60 Sight rear Base Only 129 D 61 Sight Base rear Center Screw 50 D 62 Sight Base rear Rear Screw 50 D 83A Williams Gib Lock sight clamp rear 75 D 83B Screw For Part D 83A 50 D 86 Sling Swivel Front Screw With Nut 1 75 D 87 Sling Swivel Rear Mounting Stud 15 D 4 Stock complete with pad and checkered 148 75 D 4UL Stock complete with pad and checkered ULTRA LIGHT MODEL 168 50 D 106 Stock Cross Bolt not illus 2 15 D 107 Stock Cross Bolt Nut not illus 15 D 104 Stock Reinforcement Assy not illus 6 75 D 75 Stock Reinforcement Screw not illus 1 50 D 2 Trigger Guard 6 00 D 28 Trigger Guard STEEL Fits all models 25 70 D 20 Trigger 8 00 D 22 Trigger Adjustment Screw engagement 50 D 43 Trigger Adjustment Screw weight of pull 50 D 45 Trigger Adjustment Screw over travel 50 D 44 Trigger Adjustment Set Screw over travel 50 D 25 Trigger Housing 3 75 D 26
29. structions should you practice loading unloading etc with live ammunition If you have any doubts about your ability to handle or use a particular type of gun safely then you should seek supervised instruction Such personalized instruction is often available from gun dealers gun clubs or police departments If none of these sources can help you write to the National Rifle Association Washington D C 20036 They will assist you The person with a gun in his possession has a full time job He cannot guess he cannot forget He must know how to use his firearm safely Do not use anv firearm without having a complete understanding of its particular characteristics and safe use Remember There is no such thing as a foolproof gun TABLE OF CONTENTS Page General Information and Mechanical Characteristics 00 2000005 3 AMMUNION amp zc unelcezer ba Deed Pee Ed UID eto RD Eae aed etaed td 3 The Safety and its Operation lessen 5 Operation of the Rifle Loading and Unloading 0 5 000 6 Trigger Adjustment se essen eser ree Pep Oh RED m ed eoe perd 7 Attaching Ruger Scope Rings ssssss n 8 Sight Adjustment xen epsreRedegr ese br PE Vd uer Aa dees 8 Basic Disassembly and Reassembly sseeeeeeeeee ee 9 Care and Cleaning sos ceLsRReLeP ene ee ru Wake detenta gue as 10 Service and Parts Policy 0 ccc ccc an 11 Parts List and Prices ec paced ah dee nal EAEE RR VEN ERE RR Y 12 Th
30. t then dry and lubricate very lightly Use the solvent wetted toothbrush to dislodge caked dirt from components and from surfaces inside the re ceiver that can t be reached with a patch Now use cleaning patches or the cloth to dry off the solvent 4 Wipe all surfaces internal and external with oil wetted patch or cloth that will deposit only a very light and sparing coat of oil Apply a small drop of lubricant to all pivot points in the trigger assembly Oil and similar preparations collect dirt particles which can interfere with reliable functioning of the rifle Therefore use these preparations very sparingly 5 Reassemble the rifle and carefully wipe all solvent lubricating and preservative preparations from the stock and forearm wood Dry the chamber and bore if rifle is to be fired immediately 6 Ifthe rifle is to be stored for an extended period rewipe all external surfaces with the cloth containing the oil or preservative CAUTION Do not store the rifle in a leather case or scabbard Leather attracts moisture even though it may appear to be dry WARNING Never store a firearm in such a manner that it may unintentionally be dislodged A firearm should be stored securely and unloaded 10 REGARDING ACCURACY If your rifle is not as accurate as you believe it should be before concluding that some serious fault exists run the following checks 1 Be certain the two trigger guard screws and the floor plate hinge
31. t free Cloths and a Toothbrush Some hints for effective use of the equipment use correct size brushes and patches if they are too small they don t do the job if too large they bind in the bore Insert rod from the chamber end and push firmly so the patch or brush emerges from the muzzle Don t reverse the rod when a brush or patch is being used it may bind Don t use patches or brushes dripping with solvent or oil Wet them and squeeze out excess before using Use rod and brushes with care so as not to damage gun 1 Toclean the rifle thoroughly disassemble to the extent described above taking care to put pins screws and similar easily mislaid and rolling components in a tray 2 Push pull a solvent wetted patch through the bore several times Next using a solvent wetted brush run it the full length of the bore as many times as is necessary to completely remove all foreign matter from the bore and chamber Dry the bore with clean patches and examine it If bore remains fouled repeat the brushing because bullet jacket fouling can greatly reduce accuracy and grease can interfere with proper chambering of the cartridge Complete the cleaning by dry patch wiping of bore and chamber Wipe the cleaning rod with a dry patch frequently to remove residues 3 Use a clean solvent wetted patch to remove firing residue and dirt from all components and reachable surfaces inside the receiver Carefully clean the bolt and bolt face with solven
32. t is locked closed NOTE When the safety button is positioned so the S is fully showing the safety is said to be on safe When the safety button is positioned so the F is fully showing the safety is said to be off ready to fire When the rifle is loaded unless it is to be fired immediately THE SAFETY SHOULD BE AT ITS EXTREME REARWARD POSITION with the S fully showing When operating the safety button with the thumb the user will feel additional resistance to movement of the safety before it reaches its extreme rearward 5 position That resistance should not be assumed to indicate the safety button is in the safe position WARNING The safety is not on safe until it is clicked into its extreme rearward position and the S is fully showing Practice with an unloaded rifle moving the safety button into the safe position until you know by feel and sight that it is correctly positioned See Figure 2 and Figure 3 OPERATION OF THE RIFLE Practice the important aspects of gun handling described below with an unloaded rifle until you can perform each of the steps with skill and confidence But before loading the rifle please first read completely thru this manual LOADING AND UNLOADING Before attempting to load or unload the rifle be certain the muzzle is pointing in a safe direction MAGAZINE CAPACITY AND CARTRIDGES Magazine capacity is 3 cartridges with Magnum calibers 4 cart
33. ul that it became the cornerstone upon which one of the most comprehensive lines of sporting firearms ever made in America was established After Alex Sturm s death in 1951 William B Ruger continued to direct the company alone and today as President and Chairman of the Board he is actively involved in the creative engineering of new products and continues to provide the leadership which has made this 41 year old company a sound and successful enter prise Sturm Ruger amp Company in this relatively short time has established itselt as a leading small arms design organization developing a unique and broad line of fine quality sporting military and police firearms to become one of the world s most fa mous producers of revolvers pistols rifles and shotguns During its four decades of growth and progress under the leadership of William B Ruger the company has developed a business philosophy and implemented policies which represent a constructive influence in the life of modern America From the be ginning Sturm Ruger amp Company played a positive role in conservation efforts and has supported the interests of its customers through its membership and participation in the programs of the National Rifle Association National Shooting Sports Founda tion and many regional sportsmen s organizations The company has always endeav ored to market its firearms for constructive or recreational purposes to emphasize the traditional aspects of sho
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