User Manual
Contents
1. LONG BARREL THRUST PATTERN 5 68 19 02 2011 OM 50 NEMESIS A INTRODUCTION A 1 GENERAL INFORMATION PREPARATION FOR STORAGE OR 5 Except in extreme situations the rifle should always be stored and transported only in an airtight watertight carrying case RIFLE REPAIRS Rifles should only be repaired by A M S D SA or by a qualified professional that has been approved by A M S D SA If you must ship your weapon to be repaired remember to send the whole weapon assembly not just the damaged part and to use an airtight waterproof carrying case as described above A 2 IDENTIFICATION OF MAJOR COMPONENTS BARREL BIPOD BIPOD SKID PLATE BOLT BOLT STOP COMB FLUSH CUPS FOREND GROUND SPIKE MAG CATCH LEVER MAGAZINE MANUAL FEEDING BLOCK MUZZLE BRAKE PISTOL GRIP RECOIL PAD SADDLE RAIL SAFETY LEVER SIDE RAIL STOCK JOINT TOP RAIL TRIGGER SHOE UPPER RECEIVER O c TC OL NH Lo A TENS DS 6 68 19 02 2011 OM 50 NEMESIS 19 02 2011 B SPECIFICATIONS Calibers Overall length stock collapsed Overall length stock fully extended Overall length stock folded Barrels length w o muzzle brake Twist 50Bmg 460 Steyr 416 Barrett Twist direction Nbr o2. i ll a 9 2 2 N AA Fig 45 19 02 2011 OM 50 NEMESIS 14 Ground spike adjustment Down Clockwise Rotation Left to Right UP Counter clockwise Rotation Right to Left Over all high adjustment is 75mm 3 O Y ate Fig 46 Ground spike must only be used in the vertical position when shooting on a flat surface and when used as a rear support 44 68 19 02 2011 OM 50 NEMESIS 15 Bipod adjustment 15 1 Setting up bipod in firing position Squeeze both legs and pull down Fig 47 Rotate both legs amp pull down Left leg turn clockwise Left to Right Right leg turn counter clockwise Right to Left Fig 48 45 68 19 02 2011 OM 50 NEMESIS Pull down legs to required height Fig 49 Over all high adjustment is 63mm 2 5 Fig 50 46 68 19 02 2011 OM 50 NEMESIS 15 2 Setting bipod in stored position Push ring up with your thumb and push up Fig 51 Rotate both legs pull up Left leg turn counter clockwise Right to Left Right leg turn clockwise Left to Right Squeeze both legs together Push legs up to the horizontal position Fig 52 47 68 19 02 2011 16 16 1
3. Check muzzle brake for possible obstructions AFTER FIRING The rifle should be cleaned and lubricated as soon as possible after each shooting session to prevent the corrosive effect of powder and buildup of debris in the action and barrel After each 50 rounds shot it is recommended that the bore and the chamber be scrubbed with a copper brush After each 100 rounds it is recommended that the bore and the chamber be scrubbed with a nylon brush and solvent This will maintain accuracy and insure proper functioning Clean the muzzle brake at the same time as the barrel Clean the bolt face Check both ejector and extractor Depress the ejector and extractor to test smooth motion DO NOT INSERT CLEANING ROD OR OTHER DEVICE TROUGH THE MUZZLE END OF THE BARREL BE ESPECIALLY CAREFUL NOT TO DAMAGE THE MUZZLE CROWN AS IT COULD AFFECT THE ACCURACY OF THE RIFLE 19 02 2011 16 3 50 68 OM 50 NEMESIS RIFLE CLEANING SHEDULE Daily Service As part of daily service inspect the bore and chamber and clean components parts of bolt mag and receiver Lubricate as required Weekly Service As part of weekly service inspect the bore and chamber and clean components parts of bolt mag and receiver Check bipod ground spike and stock joint Lubricate as per required 250 to 500 rounds Service Depending upon accuracy Copper fouling removal and breaking COMPONENT SERVICE REPLACEMENT INTERVAL every 250 roun
4. 48 68 OM 50 NEMESIS PREVENTIVE MAINTENANCE PROCEDURES GENERAL MAINTENANCE Ensure that all bearing surfaces particularly those listed below are clean and properly lubricated Bipod legs amp slider Bolt race track Bolt ejector Bolt extractor Firing pin cam path Ground spike Stock joint axle amp lock lug Trigger Inspect all parts for looseness and tighten or replace if necessary Each time the rifle is setup for firing ensure That barrel and chamber are clean and free of lubricant Proper function of bipod Proper function of ground spike Proper function and locking of stock joint When possible An operational check using dummy rounds should be performed Insert 5 dummy rounds into the magazine Load the magazine into the rifle Operate the bolt to the rear and forward making sure the cartridges feed extract and eject properly If the rifle is not functioning correctly refer to the TROUBLESHOOTING section of this manual 19 02 2011 b 2 b 2 1 b 3 b 4 49 68 OM 50 NEMESIS SPECIFIC MAINTENANCE BEFORE FIRING After long term storage or armory cleaning Thoroughly clean and dry the bore and the chamber After copper fouling removal Thoroughly clean and dry the bore and the chamber Fire at least 10 to 20 rounds to reset barrel to normal In the field deployment If applicable bore snake shall be used prior each shooting engagement or at least once a day
5. 1 2 Bolt Check Prior to inserting the bolt in the rifle 1 2 1 Check Extractor function 1 2 2 Visually inspect firing pin for erosion or wear marks 1 2 3 Check Ejector plunger function Fig 2 17 68 19 02 2011 OM 50 NEMESIS 2 ARMING THE FIRING Prior to inserting the bolt in the rifle firing pin must be armed 2 1 Use either bolt tool or 3mm Hex wrench to proceed CD o E Fig 3 N IMPORTANT NOTICE BOLT MUST BE STORED WITH FIRING PIN SPRING IN RELEASED STATE Weapon may fail to fire may result if not stored as per Fig 1 If the bolt is not stored properly firing pin spring will need to be replaced more frequently to ensure proper function 18 68 19 02 2011 OM 50 NEMESIS 22 Rotatethe firing pin shroud 60 clockwise Fig 4 2 3 Bolt is now set Fig 5 19 68 19 02 2011 OM 50 NEMESIS 3 BOLT LUBRICATION Prior to inserting the bolt in the rifle 3 1 Lubricate firing pin cam path 7 Fig 6 3 2 Lubricate bolt lugs Fig 7 20 68 19 02 2011 OM 50 NEMESIS 3 3 Lubricate guiding slot Fig 8 IMPORT
6. Barrel Dial 12 63 to 12 72mm gauges 12 9 12 81 12 92 12 93 12 94 12 95 12 96 12 97 12 98 12 99 Barrel 12 9mm to 12 99mm rifling gauge 13 68 19 02 2011 OM 50 NEMESIS E 5 Broken case shell extractor E 8 Saddle top rail kit with low saddle rail 14 68 19 02 2011 OM 50 NEMESIS E 9 Saddle rail raised E 10 Top rail long E 11 Top rail short Top rails could be ordered either with 30Moa or 45Moa depression 2 dots at rear 30Moa 3 dots at rear 45Moa E 12 Side rail short low or raised E 13 Side rail long low or raised 15 68 19 02 2011 OM 50 NEMESIS E 14 Slings NOT ILLUSTRATED a Biathlon type b Standard single strap type Standard double strap type E 15 Stuck case shell extractor E 16 Sound suppressor Dimensions Calibers 12 7x99mm 50 Bmg 460 Steyr 416 Barrett Overall diameter 80mm 3 15 Overall length 513mm 20 2 Weapon length addition 163mm 6 4 Weight 2 74Kg 6Lbs Threads M30x1 5 Left hand twist 16 68 19 02 2011 OM 50 NEMESIS 1 WEAPON SETUP 1 1 Bolt storing setup ug 3 o C 2 Fig 1
7. OM 50 NEMESIS is warranted by A M S D SA to be free from defects in material and workmanship for a period of twelve 12 months from the date of purchase by the original purchaser Under this warranty the obligation of A M S D SA is limited to the free replacement to the original purchaser of any part which under normal conditions of use proves to be faulty because of a defect in material or workmanship A M S D SA will not be responsible for the results of misuse neglect corrosion unreasonable use improper or defective ammunition unauthorized alterations or normal wear and tear The use of nonstandard old damaged corroded or re manufactured hand loaded ammunition will void all warranties expressed or implied In order to receive warranty service the entire firearm and damaged parts must be returned to the factory Put warranty claim in writing and include serial number and the nature of the problem Shipping charges to the manufacturer must be paid by the purchaser If claim is accepted for warranty work return shipping and insurance charges will be paid by A M S D SA 23 Limitation of Warranty The liability of A M S D SA for any and all losses and damages to the purchaser shall in no event exceed the purchase price of the firearm and then only if the firearm is proven to be defective in the material or workmanship A M S D SA shall under no circumstances be liable for incidental or consequentia
8. load the magazine Push on both sides while introducing cartridges from the front to the back repeat until desired amount of rounds is reached Maximal magazine capacity 5 rounds ZA Fig 23 DO NOT LEAVE ROUNDS IN THE MAGAZINE FOR AN EXTENDED PERIOD OF TIME AS THIS MAY CAUSE THE SPRING TO LOSE TENSION LEADING TO MALFUNCTION 30 68 19 02 2011 OM 50 NEMESIS 8 LOADING THE RIFLE 8 1 To Load the rifle Insert loaded magazine front end first as shown Rotate clockwise until it locks Check if magazine is properly locked During magazine insertion Bolt can either be closed or opened Fig 24 8 2 Loaded weapon handling Fig 25 31 68 19 02 2011 OM 50 NEMESIS 8 3 Removing the safety From either SAFE or SAFE BOLT LOCKED Turn safety lever to FIRE as shown in Fig 26 Remove safety only when in proper shooting position Fig 26 OM 50 NEMESIS Weapon system has a built in passive safety measure All the trigger parts are dynamically balanced to sustain a 6 axis drop with a live round in the chamber safety lever on FIRE position Nevertheless an operator should not rely soley on the mechanical safety devices Use extreme caution while handling the weapon loaded or not 32 68 19 02 2011 OM 50 NEMESIS 9 UNLOADING THE RIFL
9. rail ra 2X 5rds Box mag 1x Field cleaning kit 1x Bolt tool 1x Manual feeding block 1x MilDial 1x Negrini 1640 1x PB 211H6 wrench set 1x Scope ring set choice 230 34 35 9 68 19 02 2011 OM 50 NEMESIS D STANDARD EQUIPMENT S Equipment may vary depending on purchased model D 1 5rds box mag amp manual feeding block DJ D 2 Field cleaning kit 10 68 19 02 2011 D 3 4 5 D 6 D 7 11 68 OM 50 NEMESIS Bolt tool MilDial Co CORTA SO GENEVA INTERO MILDOT DIAL METRIC UNITS Carrying case Negrini1640 Not Illustrated Wrench set PB 211H6 Scope ring set 230 34 35 Not Illustrated 19 02 2011 OM 50 NEMESIS E ACCESSORIES BASIC SPARE PARTS amp TOOLS E 1 Armory bolt tool E 2 Armory cleaning kit 12 68 19 02 2011 OM 50 NEMESIS Armory gauges kits Bolt head gauges Barrel chamber gauges 12 83 12 84 12 85 12 88 12 87 12 68 12 69 12 7 12 71 12 72
10. rent A M 5 D User Manual OM 50 NEMESIS 12 7x99mm 50Bmg 460 Steyr 416 Barrett FM OM50 2010 R1 0 E FM OM50 2010 R1 0 E User Manual OM 50 NEMESIS Models Mk4 Mk5 Mk5 NV 1 68 19 02 2011 Chapter OM 50 NEMESIS TABLE OF CONTENTS Subject 5 Safety rules Clearing the weapon Blast effect safety rules Introduction Technical information Models amp variants Mk4 5 Mk5 Nv Standard equipment 5rds box mag amp manual feeding block Field cleaning kit Bolt tool MilDial carrying case Negrini 1640 wrench set PB 211H6 Scope ring set 130 34 35 Accessories basic spare parts amp tools Armory bolt tool Armory bolt head repair kit Armory cleaning kit Armory gauges kits Broken case shell extractor X tra large bipod skids kit Field firing pin kit Saddle top rail kit with low saddle rail Saddle rail raised Top rail long Top rail short Side rail short low or raised Side rail long low or raised Slings Stuck case shell extractor Sound suppressor Weapon setup Bolt storing setup Bolt check Arming the firing pin Bolt lubrication Page Number ans 19 02 2011 Chapter 10 11 11 1 11 3 12 13 14 15 16 16 1 16 2 16 3 16 4 17 18 19 20 21 21 1 22 23 Subject s Firing pin and shroud removal Bolt insertion Stock setup Loading the magazine Loading the rifle Unload
11. ANT NOTICE Grease must be used for bolt lubrication Bolt lubrication process must be repeated every 25 to 50 rounds depending on weather and or environmental conditions 21 68 19 02 2011 4 4 1 4 2 4 8 22 68 OM 50 NEMESIS FIRING PIN AND SHROUD REMOVAL Insert the 3mm Hex wrench through the shroud AN Fig 10 Extract the assembly from the bold body Fig 11 19 02 2011 OM 50 NEMESIS 4 4 Lubricate the contact surfaces with grease Fig 12 4 5 Insert the firing pin assembly back in the bolt body Fig 13 23 68 19 02 2011 OM 50 NEMESIS 4 6 Push the assembly forward and rotate 90 clockwise Fig 14 4 7 Once the shroud is in the proper position you should be able to extract the wrench without force 24 68 19 02 2011 OM 50 NEMESIS 5 BOLT INSERTION PRIOR TO INSERTION Safety lever MUST be set to either FIRE or SAFE as per shown in fig 16 prior to introducing the bolt into the receiver Trying to insert the bolt by force with safety lever set to SAFE BOLT LOCKED will permanently damage the trigger system and will void the warranty e AD UE 25 68 19 02 2011 OM 50 NEMESIS 5 1 insert the bolt in the weapon If the weapon is on a flat su
12. E 9 1 To unload the rifle Turn safety lever to SAFE Open the bolt Check if the chamber is empty Push on Latch and pull down the magazine Fig 27 Fig 28 33 68 19 02 2011 10 10 1 OM 50 NEMESIS BARREL CHANGE SWITCH OR REMOVAL Prior to proceeding Safety lever must be set on the SAFE position Check that rifle is properly unloaded Open the bolt amp check if barrel chamber is empty visually amp manually Barrel switch has to be made in a clean as possible environment To take the barrel of the receiver Use a 6mm Hex wrench to unlock the five 5 screws on the right side of the rifle once screws are running free rotate each of them one 1 turn to give enough play space 34 68 Fig 29 19 02 2011 OM 50 NEMESIS Use a 3mm Hex wrench to activate the inner pusher Rotate clockwise until resistance is encountered Rotate 12 to 34 of a turn to free the barrel Fig 30 C Slide out the barrel from the receiver Fig 31 Check all contact surfaces on the receiver amp the barrel Action Clean if required If the rifle is to be stored w o barrel Action Release the left side screw for long term storage If bolt has to stay in the receiver during storage Action Close bolt while pressing on the trigger shoe 35 68 19 02 2011 OM 50 NEMESIS 10 2 Reassembly of the barrel Hold the rifle in a vertical position Insert barrel with locking ring not
13. ad aligning the steady pin until resistance is encountered on hexagonal screw turn until shell rounds is cleared of the chamber WARNING DUE TO THE SPECIFICS OF 50BMG AMMUNITIONS A STUCK CASE EXTRACTOR MUST BE USED EVERY TIME A LIVE ROUND IS STUCK IN A BARREL TRYING TO PUSH A LIVE ROUND FROM THE MUZZLE WITH A ROD COULD RESULT IN SERIOUS INJURY OR DEATH Since ammunition with active payload may have been chambered w o operator knowledge 56 68 19 02 2011 OM 50 NEMESIS LS E EA 7 N n a 77 SSS 57 68 Fig 57 19 02 2011 OM 50 NEMESIS 20 MILDIAL A MILDOT reticule is a simple reliable and an accurate way of finding out target range without a laser range finder or as a Back up to a laser range finder It
14. also allows the operator to make corrections w o adjusting the scope Y our rifle is supplied with a MILDIAL which allows you to calculate your target range faster by using an analog calculator Shooter shall train them selves to use both MILDOT and MILDIAL Theory of MILDOT By multiplying the measured known dimension B of target by one thousand and dividing it by the number of measured MILS the shooter get a direct reading of distance range A of target Exemples Standard building Door width 0 80 Measured MILS in the scope 2 Result 0 8 x 1000 800 2 400m Average truck facing forward 2 5m Measured MILS in the scope 4 Result 2 5 1000 2500 4 625 Average wheeled armored vehicle length 6m Measured MILS in the scope 3 Result 6 x 1000 6000 3 2000m 58 68 19 02 2011 OM 50 NEMESIS Prior to using your MILDOT amp MILDIAL check if your reticule is on first or second focal plane If the rifle is fitted with a first focal plane reticule scope Measures are valid at any magnifications If the rifle is fitted with a second focal plane reticule scope your measures are valid only at a determined magnifications in this case make sure that you set scope at proper magnification IMPORTANT NOTICE Illustrations may not be to scale or may not be as per your hardware Dimensions used for calculation are for demonstration purposes only and shall not be used in the field unless do
15. ch toward top picatinny rail Close the bolt to ensure proper positioning of the barrel IMPORTANT NOTICE Bolt has to be opened prior to barrel insertion A gt gt D 9 Fig 33 36 68 19 02 2011 OM 50 NEMESIS A Unscrew the left pusher screw In a DOWN to UP order turn the five 5 screws on the right side until resistance is felt on each on of them then start applying torque to each screw following the same DOWN to UP order Proper torque is reached when supplied 6mm Hex wrench starts bending 15 to 20 mm 9 16 to 3 4 37 68 19 02 2011 OM 50 NEMESIS B Double check screw torque following order pattern FAILURE TO COMPLY MAY RESULT IN POOR ACCURACY e Fig 35 38 68 19 02 2011 OM 50 NEMESIS 11 MUZZLE BRAKE amp SUPPRESSOR 11 1 Muzzle brake removal a Use supplied 4mm Hex Wrench ZI Fig 36 b Unscrew both retaining screws on muzzle brake Fig 37 Unscrew muzzle brake counter clockwise n gt 27 all Lem A EN EDS lue e Fig 38 2 Turn until
16. ds Check bolt lugs wear replace bolt head if needed Check ejector functioning clean and lubricate if needed Check ejector wear replace if needed Check extractor functioning clean and lubricate if needed Check extractor wear replace if needed Check firing pin tip wear replace if needed 2500 rounds Check barrel chamber wear head space replace if needed Check muzzle brake wear replace if needed Yearly Check retaining O ring on both bipod legs replace if needed Check recoil pad wear replace if needed Check polymer parts for cracks replace if needed 19 02 2011 17 TROUBLESHOOTING OM 50 NEMESIS 17 1 MALFUNCTION AND IMMEDIATE ACTION MALFUNCTION CAUSE CORRECTIVE ACTION Failure to Feed Bent magazine lips Repair or replace magazine body Magazine not seated Reinsert properly Weak magazine spring Replace follower Failure to chamber Damaged cartridge Remove and recharge reload Dirty chamber Clear and clean Failure to Lock Barrel not seated properly Re seat and tighten properly Excessive dirt sand etc in locking area Clear and clean Oversized cartridge Remove and recharge reload Hard to Unlock Open Barrel moved forward Re seat and tighten properly Dry or out of lubricant cam path Clean and lubricate Over pressure Check ammunition Keep ammunition cooler Failure to Fire Bolt not fu
17. ened ejection port Physically Insert index finger through ejection port to feel the presence of a round or empty case in the chamber Empty live rounds from the magazine Remove and store any live rounds and or empty cases from whiting the weapon or magazine before handling the weapon further 19 02 2011 OM 50 NEMESIS BLAST EFFECT SAFETY RULES To reduce the recoil felt by the shooter this rifle is equipped with a high efficiency muzzle brake In order to reduce the recoil a major part of the gases released when firing a round create a reverse thrust in the muzzle brake This generates THRUST ZONES also called BLAST Avoid these zones while weapon is in use Debris from the ground could be projected at high speed and could cause injuries to bystanders Therefore it is important to clear the surface of small objects prior to shooting There should be a minimum of 2m between teams shooting in line Shooting in closer position will place shooters in the Blast zone When shooting as a team the spotter must have his shoulders at the level of the shooter s hips and be as close as possible to him to be in the SAFE ZONE SHORT BARREL TRUST PATTERN 52 Bas OY y SS Pe Rus SS MN NG ee bn Du Mg 57 Dorn 2 a gt m m zN zo zz m
18. f lands amp grooves Weight with 700mm 27 5 barrel B 1 CAPABILITIES Ammunition type Muzzle velocity Energy Effective range Maximum range 15250 joules OM 50 NEMESIS 12 7x99mm 50 Bmg 460 Steyr 416 Barrett 1338mm 52 7 1413mm 55 6 1092mm 43 900mm 35 5 800mm 31 5 700mm 27 5 600mm 23 5 450mm 17 75 381mm 15 356mm 14 279mm 11 Right 6 11 4Kg 25Lbs 13 4Kg 29 5Lbs 13 8Kg 30 4Lbs Standard M33 ammunition with 700mm 27 5 barrel 850m s 2800 f s approximately 1850m 2000 yards approximately 6500m 7000 yards 19 02 2011 OM 50 NEMESIS MODELS VARIANTS C 1 MK4 V mm po y ha E CC Ud _ 19 UL Fixed fully adj stock 700mm Barrel 1x Field cleaning kit 1x Bolt tool 1x Manual feeding block 1x Negrini 1640 carry case 1x PB 211H6 wrench set C 2 MK5 O Folding fully adj stock 700 Barrel Bipod amp ground spike 1x 5rds Box mag 1 Field cleaning kit 1x Bolt tool 1x Manual feeding block 1x MilDial 1x Negrini 1640 1x PB 211H6 wrench set MK5 NV El O 8 Folding fully adj stock 700 Barrel Bipod amp ground spike integral tapered
19. g result 125m 61 68 19 02 2011 b Example OM 50 NEMESIS Fig 60 b 1 As per illustration Human from heel to top of head Measured MILS in the scope Result b 2 shown Human shoulder to shoulder Measured MILS in the scope Result 62 68 1 8 m estimated 3 1 8 x 1000 1800 3 600m 0 6 m estimated 1 0 6 x 1000 600 1 600m 19 02 2011 2007 COPYRIGHT A M S D GENEVA SWITZERLAND MILDOT DIAL METRIC UNITS 1IDUVI 50 NEMESIS 5 D UTILISATION R LA TAILLE DE LA CIBLE AVEC A VALEUR MESUREE EN MILS MILDOT LIRE LA DISTANCE DE LA CIBLE DANS LA FENETRE DE GAUCHE USER INSTRUCTIONS 1 ALIGN TARGET SIZE WITH MEASURED MILS MILDOT VALUE 2 READ TARGET DISTANCE IN LEFT WINDOW MILS a gt A TAILLE DE LA CIBLE TARGET SIZE PATENT PENDING PIN MDEF M MADE IN SWITZERLAND b 1 1 As per illustration The analog calculator wheel is set to al Direct reading result 600m b 2 1 As per illustration The analog calculator wheel is to be se Direct reading result 600m 63 68 uoce VV ign 18cm with 3 Mils t to align 60cm with 1 Mils 19 02 2011 OM 50 NEMESIS Fig 62 19 02 2011 64 68 OM 50 NEMESIS Top compensate for topographic correction use a piece of wire a cord or fishing line to hang a weight from the center of your MILDIAL Put your MILDIAL o
20. ing the rifle Barrel change switch or removal Muzzle brake amp suppressor Muzzle brake removal Suppressor assembly Stock length adjustment Stock comb high adjustment Ground spike adjustment Bipod adjustment Preventive maintenance procedures General maintenance Specific maintenance Rifle cleaning schedules Component service replacement intervals Troubleshooting Broken shell extractor Stuck case extractor Mildial Zeroing the rifle Zeroing target Limited warranty Limitation of warranty OM 50 NEMESIS Page Number 22 25 28 30 31 33 34 39 40 42 43 44 45 52 56 58 66 67 68 68 19 02 2011 Rule 1 Rule N 2 Rule 3 Rule N 4 Rule N 5 Rule 6 DON E OM 50 NEMESIS SAFETY RULES Treat every weapon as if it is loaded Never point a weapon at anything or anybody that you do not intend to harm or destroy or in a direction where an unintentional discharge may result in damage to property injury or death Never place your finger into the trigger guard until you are ready to fire the weapon Be sure of your target and of what s behind it before firing Always wear eye amp ear protection when firing a weapon Clear every weapon before handling it CLEARING THE WEAPON Rotate the safety lever to SAFE Open the bolt Remove the magazine Inspect the chamber for the presence of a live round or empty case Visually look at the chamber through op
21. l damages resulting from negligence or misuse of the purchaser A M S D SA provides no other warranties of any kind expressed or implied with respect to the AMSD 50 NEMESIS 68 68 19 02 2011 A M 5 D Advanced Military Systems Design Box 487 1214 Vernier Geneva Switzerland Office int 41 22 349 76 93 Fax int 41 22 349 76 91 Workshop int 41 22 758 08 88 Website www amsd ch E Mail admin amsd ch clm amsd ch contact amsd ch sales amsd ch
22. lly locked Rearm bolt w o ejecting Broken firing pin tip Replace Faulty ammunition Replace ammunition and recharge reload Failure to Extract Broken extractor Remove and replace Broken shell Use broken shell extractor Dirty chamber Clean Extractor not moving Remove clean and reassemble freely in slot Stuck cartridge Use stuck case extractor Failure to Eject Frozen or damaged ejector or spring Remove and replace Very hard recoil Broken damaged or missing muzzle brake Inspect and replace if needed Faulty Hot ammunition Replace or cool ammunition Over loaded ammunition Replace ammunition 51 68 19 02 2011 OM 50 NEMESIS 18 BROKENSHELL EXTRACTOR In case of broken shell stuck in the chamber use factory extractor a Insert extractor as per sown Diameter to allow extractor to work is 14mm minimum if diameter is smaller increase to proper diameter by drilling 52 68 19 02 2011 OM 50 NEMESIS b Push extractor until it clicks into the chamber Fig 54 amp Fig 55 Turning knurled wheel N 1 Tighten until resistance is encountered Your extractor is now firmly locked on brass mouth Fig 56 Turning knurled wheel N 2 Tighten until resistance is encountered hold on knurled wheel N 3 while turning wheel N 2 After a few turns Brass should come out and clear the chamber U
23. muzzle brake until it comes off freely 39 68 19 02 2011 OM 50 NEMESIS 11 2 Prior to assembly of either muzzle brake or suppressor Check both and threads Fig 40 Threads must be kept Clean Lubricate with grease to avoid seizing 11 3 Suppressor assembly er N p di o 2 pani 2 A Zs _ d Fig 41 b Until contact with threads is felt roughly at 25mm 1 from barrel recess 40 68 19 02 2011 OM 50 NEMESIS Screw counterclockwise until resistance is felt Do not over torque the suppressor N WARNING THE RIFLE MUST NOT BE FIRED WITHOUT THE MUZZLE BRAKE OR THE SUPPRESSOR FIRMLY IN PLACE ON THE BARREL SERIOUS INJURY OR DEATH MAY RESULT 41 68 19 02 2011 OM 50 NEMESIS 12 Stock length adjustment Use supplied 5mm Hex Wrench Unlock the two screws on the stock slider Set stock to required length Lock both screws Over all length adjustment is 75mm 3 0 Fig 44 42 68 19 02 2011 13 OM 50 NEMESIS Stock comb high adjustment Use supplied 5mm Hex Wrench Unlock the two screws on the comb Set comb to required high Lock both screws Over all high adjustment is 25mm 1
24. n a flat surface on the rifle to get angle correction c 1 As per illustration Fig 60 Human from heel to top of head 1 8 m estimated Measured MILS in the scope 3 Straight line shooting result 1 8 x 1000 1800 3 600m c 2 Not shown in Fig 60 Human shoulder to shoulder 0 6 m estimated Measured MILS in the scope 1 Straight line shooting result 0 6 x 1000 600 1 600m c 1 1 As per illustration Fig 62 The analog calculator wheel is set to align 18cm with 3 Mils Direct reading result 600m Corrected result with 30 up down slop 520m c 2 1 As per illustration Fig 62 The analog calculator wheel is to be set to align 60cm with 1 Mils Direct reading result 600m Corrected result with 30 up down slop 520m 65 68 19 02 2011 OM 50 NEMESIS 21 ZEROINGTHE RIFLE Printing and using the target on page 67 You can zero your rifle in a fast ammunition saving and efficient manner Place target 25m Pre zero your rifle using a bore or chamber laser First impact should be close to the square on target Adjust scope to obtain group in the square You will now have to go to 100m to finish zeroing your rifle Impact 30mm 1 25 Impact 30mm 1 25 Fig 63 66 68 19 02 2011 OM 50 NEMESIS Print 1 1 scale on A4 paper Caliber 50 BMG Distance 25m Delta 30mm Zero distance 100m 67 68 19 02 2011 OM 50 NEMESIS 22 Limited Warranty The
25. rface a stand or a table Pull down bipod legs for steady handling If you are in the field Hold weapon vertical while keeping muzzle brake on your shoe to prevent barrel obstruction To open the bipod Squeeze both legs together and turn clockwise Fig 17 26 68 19 02 2011 OM 50 NEMESIS 5 2 Push the bolt in to the receiver a slight up or down rotation of the bolt handle will help bolt stop to engage the guiding slot Fig 18 5 3 Lock the bolt and dry fire to check proper function of trigger fully open the bolt until the bolt stop engages and close the bolt again either dry fire or set the rifle on safety Your rifle is now ready for operation 27 68 19 02 2011 OM 50 NEMESIS 6 STOCK SETUP 6 1 To open the stock Pull or push up the stock holding it as close as possible from stock joint and rotate counter clockwise until it locks in position Fig 20 6 2 To open the ground spike Pull forward and rotate clockwise until it s locked in position Fig 21 Ground spike must only be used in the vertical position when shooting on a flat surface and when used as a rear support 28 68 19 02 2011 OM 50 NEMESIS 6 3 Using the ground spike for target follow up The ground spike can be used at a 45 angle to shoot from shoulder to follow up moving target or from high grounds down Fd Fig 22 29 68 19 02 2011 OM 50 NEMESIS 7 LOADING THE MAG 7 1 To
26. sing the broken shell extractor will solve 99 of broken case problems Chamber polishing should be considered after extraction 53 68 19 02 2011 OM 50 NEMESIS 2 SDA x SS Yj gt s N gt ana gt S K lt 3 NN PAN N NNN N Ls N of 7 NY A 4 2 K 2 AN 2 J d N 1 WA ID ATG N 4 A AN E lar SS 1 N NI NN SN NJ N Pi 7 9 Y Y Fig 54 Fig 55 54 68 19 02 2011 OM 50 NEMESIS A q N gt 6 0 Ni NO N V HS Fig 56 55 68 19 02 2011 OM 50 NEMESIS 19 STUCK CASE EXTRACTOR In incident of a stuck case or full round in the chamber use factory extractor Insert extractor as per shown First insert extractor head over the shell case Insert pulling body over pulling he
27. uble checked amp confirmed by operator Mildot amp Mildial are not as precise then modern Laser range finders but prove to be accurate enough in the field for operation They are to be used as a backup system and for training purpose Mildial is water proof shock proof dust proof etc and does not need battery to work so may save your life in the field 59 68 19 02 2011 OM 50 NEMESIS a Example Fig 58 a 1 As per illustration Human head from ear to ear 0 2 m Measured MILS in the scope 2 Result 0 2 x 1000 200 2 100m a 2 Not shown Human head from thin to top of head 0 25 m Measured MILS in the scope 2 Result 0 2 x 1000 200 2 125m 60 68 19 02 2011 OM 50 NEMESIS Y s 2007 COPYRIGHT A M S D GENEVA SWITZERLAND MILUDT DIAL METRIC UNITS l139uVvl 31919 TIONS D UTILISATION R LA TAILLE DE LA CIBLE AVEC VALEUR MESUREE EN MILS MILDOT LIRE LA DISTANCE DE LA CIBLE DANS LA FENETRE DE GAUCHE USER INSTRUCTIONS 1 ALIGN TARGET SIZE WITH MEASURED MILS MILDOT VALUE 2 READ TARGET DISTANCE IN LEFT WINDOW 5 gt TAILLE DE LA CIBLE PATENT PENDING PIN MDEF M TARGET SIZE MADE IN SWITZERLAND wool a 1 1 As per illustration The analog calculator wheel is set to align 20cm with 2 Mils Direct reading result 100m a 2 1 Not shown The analog calculator wheel is to be set to align 25cm with 2 Mils Direct readin
Download Pdf Manuals
Related Search