1、MIL-C-70723 m 9999906 1852243 131 I METRIC 1 MIL-C-70723 (AR) 19 April 1993 SUPERSEDING MIL-C-63999 MIL-C-64038 3 June 1985 16 August 1983 MILITARY SPECIFICATION CARTRIDGE, CALIBER .50, M-858 BALL AND M-860 TRACER SHORT RANGE TRAINING AMMUNITION This specification is approved for use by the U.S. Arm
2、y Munitions and Chemical Command, and is available for use by all Departments and Agencies of the Department of Defense. Armament, 1. SCOPE Scope. This specification covers requirements, quality assurkk provisions, and preparation for delivery for Cartridge, Caliber .50, Ball and Tracer Short Range
3、Training Ammunition (SRTA). 2. APPLICABLE DOCUMENTS 2.1 Government documents. 2.1.1 Specifications, standards, and handbooks. The following specifications, standards, and handbooks form a part of this document to the extent specified herein. Unless otherwise specified, the issues of these documents
4、shall be those listed in the issue of the Department of Defense index of Specifications and Standards (DODISS) and supplement thereto, cited in the solicitation. SPECIFICATIONS FEDERAL 0-1-503 0-T-620 P-D-680 - Insect Repellant - Trichlorethane -1, 1, 1, Technical Inhibited (Methyl Chloroform) - Dry
5、 Cleaning Solvent Beaeboal comments (nawmmdati:om, additions, deletions) and any pertinent data which may x of usc in improving this document sbdd be addrssed to: Chmander, U.S. Army ARDEC, ATH: SMCAR-BAGS, Picatinny Arsenal, Ncw Jeisey 07806-5000 by ushg tbc Af-addrcrced Standardization Document Im
6、provement Propasai (DD Form 1426) appeariag at be end of this dawneot or by letter. AMSC NIA nc 1305 -UTION STAIEMENT k Approved for public rcleasc; distribution is unlimjted. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-C-70723 = 999990b 1852
7、244 078 VV-L-800 MILITARY MIL-C- 3 7 2 MIL-L-2104 MIL-A-2550 MIL-L-14107 MIL-C-14858 MIL-L-46000 MIL-L-46167 MIL-A-48078 MIL-L-63460 STANDARDS MILITARY DOD-STD-100 MIL-STD-105 MIL-STD-109 MIL-STD-129 MIL-STD-636 MIL-STD-644 MIL-STD-650 MIL-STD-810 MIL-STD-1168 MIL-C-70723 (AR) - Lubricating Oil, Gen
8、eral Purpose Preserva- tive, (Water-Displacing, Low Temperature) - Cleaning Compound Solvent for Bore of Small Arms and Automatic Aircraft Weapons - Lubricating Oil, Internal Combustion Engine, Tactical Service - Ammunition, General Specification for - Lubricating Oil, Weapons Low Temperature - Cart
9、ridge, Caliber .50: Reference - Lubricant, Semi-Fluid (Automatic Weapons) - Lubricating Oil, Internal Combustion Engine, Arctic - Ammunition, Standard Quality Assurance Provisions, General Specification for - Lubricant, Cleaner and Preservative for Weapons and Weapon Systems - Engineering Drawing Pr
10、actices - Sampling Procedures and Tables for - Quality Assurance Terms and Definitions - Marking for Shipment and Storage - Visual Inspection Standards for Small Arms Ammunition through Caliber .50 - visual Inspection Standards and Inspection of Packaging, Packing and Marking of Small Arms Ammunitio
11、n - Explosives: Sampling, Inspection, and Testing - Environmental Test Methods and Engineering Guide1 ines - Ammunition Lot Numbering Inspection by Attributes (Unless otherwise indicated, copies of federal and military specifications, standards, and handbooks are available from: Standardization Docu
12、ments Order Desk, Bldg 4D, 700 Robbins Avenue, Philadelphia, PA 19111-5094.) 2.1.2 Other Government documents, drawinqs, and publications. The following other Government documents, drawings, and publications form a part of this document to the extent specified herein. Unless otherwise specified, the
13、 issues are those cited in the solicitation. 2 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-C-70723 m 0b 1852245 TO4 m I I l I I I l I I I I I I I L i I MIL-C-70723 (AR) DRAWINGS (see 6.6) US ARMY ARMAMENT RESEARCH, DEVELOPMENT, AND ENGINEERIN
14、G CENTER (ARDEC) PRODUCT AND PACKING DRAWINGS 6006874 6109086 7643674 8421679 12002898 12002899 12576456 12576457 12598606 12598607 - Cardboard Silhouette Target - IF1 Cardboard Silhouette Target - Classification of Cartridge Case Defects - M31A1, Trainfire Target Holding Mechanism - I1Et1 Polyethyl
15、ene Silhouette Target - “FV1 Polyethylene Silhouette Target - Packing and Marking for Box, Wirebound for Cartridge, Caliber .50 - Packing and Marking for Metal Box, Ammunition, M2A1 for Cartridge, Cal .50 - Cartridge, Caliber .SO, Ball, Short Range Training - Cartridge, Caliber .50, Tracer, Short Ra
16、nge Training Small Arms Ammunition INSPECTION EQUIPMENT DRAWINGS IL12598606 - Index of Inspection Equipment Lists for: IL12598607 - Index of Inspection Equipment Lists for: Cartridge, Caliber .50, Ball, Short Range Training Cartridge, Caliber .50, Tracer, Short Range Training PUBLICATIONS US ARMY AR
17、MAMENT RESEARCH, DEVELOPMENT, AND ENGINEERING CENTER SCATP-5.56 - Ammunition Ballistic Acceptance Test SCATP-7.62 - Ammunition Ballistic Acceptance Test Methods, Test Procedures for 5.56mm Cartridges Methods, Test Procedures for 7.62mm Cartridges Classification Procedures TB-700-2 TECP 700-700 - Man
18、ual of Test Methods for Small Arms JSSPM - Joint Services Safety and Performance - Department of Defense Explosives Hazard VOL. III Ammunit ion Manual for Qualification of Explosives for Military Use 3 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-
19、MIL-C-70723 9Ob 1852246 940 MIL-C-70723 (AR) TEST OPERATIONS PROCEDURES (TOPS) U.S. ARMY TEST AND EVALUATION COMMAND (TECOM) TOP 1-2-601 - Laboratory Vibration Schedule TOP 3-2-045 - Automatic Weapons, Machine Guns, Hand and Shoulder Weapons TOP 4-2-601 - Drop Tower Tests for Munitions TOP 4-2-602 -
20、 Rough Handling (Copies of other Government documents, drawings and publications required by the suppliers in connection with specific procurement functions should be obtained from the procuring activity or as directed by the contracting officer.) CODE OF FEDERAL REGULATIONS TITLE 49 - Transportatio
21、n, Parts 100-199 (The Code of Federal Regulations is available from the Superintendent of Documents, U.S. Government Printing Office, Washington, D.C. 20402-0001. - Orders should specify, “49 CFR 100-199 (LATEST 2.2 Nonqovernment publications. The following document(s) forms a part of this document
22、to the extent specified herein. Unless otherwise specified, the issues of the documents which are DOD adopted are those listed in the issue of the DODISS cited in the solicitation. Unless otherwise specified, the issues of documents not listed in the DODISS are the issues of the documents cited in t
23、he solicitation. American National Standards Institute (ANSI) ANSI Y14.5M-1982 - Dimensioning and Tolerancing (Application for copies should be addressed to American National Standards Institute (ANSI), 1430 Broadway, New York, NY 10018.) 2.3 Order of precedence. In the event of conflict between the
24、 text of this document and the references cited herein, the text of this document takes precedence. however, supersedes applicable laws and regulations unless specific exemption has been obtained. Nothing in this document, 4 Provided by IHSNot for ResaleNo reproduction or networking permitted withou
25、t license from IHS-,-,-MIL-C-70723 = Ob 1852247 887 MIL-C-70723 (AR) 3. REQUIREMENTS 3.1 General. The cartridges shall comply with the requirements shown on drawings 12598606 and 12598607, reference specifications and the requirements stated in this section. All of the cartridge components shall be
26、compatible with each other. The primer mix shall be noncorrosive and the propellant shall be smokeless. The cartridge shall be compatible with the Caliber.50 M9 link and the M2 Browning Machine Gun (BMG) with the M3 Recoil Amplifier (RA) weapon system. 3.2 Qualification. A sample shall be submitted
27、for qualification in accordance with (IAW) the technical provisions Specified herein (see section 4): The purpose of qualification is to verify that a particular contractors design shall be considered qualified indefinitely. The contractor shall submit level 3 detailed item drawings IAW DOD-STD-100,
28、 MIL-A-2550 and ANSI Y14.5-82 to the Government for configuration control. All changes shall be submitted IAW DOD-STD-480 for review and approval by the Government. The Government reserves the right to subject the revised design to any or all the qualification evaluations specified in 4.3 at the exp
29、ense of the contractor. 3.3 First article inspection. When specified in the contract or purchase order, a sample shall be subjected to first article inspection IAW the technical provisions specified herein (see 4.4). 3.4 Performance characteristics. 3.4.1 Primer sensitivity. The value of the average
30、 height (h) minus 2 standard deviations (s) shall be equal to or more than 63mm (2.5 in). For cartridges with metal cases the value of h + 5s shall be equal to or less than 381mm (15 in). For cartridge cases made of other materials, the value of h + 5s shall be established by the contractor prior to
31、 completion of Qualification testing. 3.4.1.2 Residual stress. The cartridge shall not split when subjected to the accelerated stress test for the applicable materials. 3.4.1.3 Waterproof. The cartridge shall release not more than one bubble of air when tested at a pressure of 14 kPa (2 psi) below a
32、tmospheric pressure for 30 seconds. As an alternate procedure or for retesting, the waterproof (firing) requirement specified in 3.4.3.2 may be applied. 3.4.2 Chamber pressure. The mean chamber pressure of cartridges, measured at the midcase using a Government approved piezoelectric transducer, cond
33、itioned at 20C (68F) shall not exceed 180 MPa (26,100 psig). The chamber pressure of any individual cartridge shall not exceed 200 MPa (29,000 psig). 5 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-C-70723 D 9Ob 1852248 713 H MIL-C-70723 (AR) 3
34、.4.2.1 Chamber pressure at extreme temperatures. The mean chamber pressure of cartridges conditioned at 50C (122F) and -2OC (-4F) shall not increase more than 40 MPa (5,800 psi) above the mean chamber pressure obtained at 20C. The mean chamber pressure of cartridges conditioned at 50C (122F) and -2O
35、C (-4F) shall not exceed 200 MPa (29,000 psig). Decreased chamber pressure is acceptable. 3.4.3 Velocity. The mean velocity of cartridges conditioned at 20C f68FI measured at 24 m (78 ft) from the muzzle of the weapon shall not vary more than + 5% from the design velocity. The design velocity is the
36、 mean velocity obtained during qualification testing at 20C. 3.4.3.1 Velocity at extreme temperatures. The mean velocity of cartridges conditioned at 50C (122F) and -2OC (-4F) shall not vary by more than 2 8% from the design velocity. 3.4.3.2 Waterproof (firing). After immersion in 20C (68F) water f
37、or 24 hours the mean velocity of the test cartridges shall not vary from the mean velocity obtained in the 20C dry test by more than 2 30 mps (98fps). 3.4.4 Action time. The action time (overall primer ignition, propellant burning, plus the time taken for the bullet to exit the barrel) of cartridges
38、 conditioned at 20C (68F), 50C (122F) and -2OC (- 4F) shall not exceed 4 milliseconds (ms). 3.4.5 Dispersion. When fired from the M2 BMG with M3 RA, the average mean radii of bullet marks on the targets shall not exceed 305m (12 inches) at 150 meters. 3.4.5.1 Match. The mean point of impact of the t
39、racer SRTA shall not be more than 150mm (5.9 inches) in the vertical direction from the mean point of impactof the ball SRTA when fired at targets located 150 meters from the M2 BMG with M3 RA. 3.4.6 Function and casualty. The cartridges shall function without casualty in M2 BMG with M3 RA throughou
40、t a temperature range of -2OC to +50C. The cartridges shall safely function throughout a temperature range of -5OC (-58F) through +70C (158F). 3.4.6.1 Cyclic rate. The cartridge shall function the M2 BMG with M3 RA between 450 and 600 shots per minute (spm) within the - - temperature range of -2OC t
41、o +50C. no greater than 164 decibels nor more than 10 decibels below the noise level of M33 ball cartridges fired under identical conditions. 3.4.6.2 Noise level. The noise levels of cartridges shall be 6 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,
42、-,-MIL-C-70723 W 999990b 1852249 b5T H MIL-C-70723 (AR) 3.4.6.3 Breechflash. Breechflash when firing cartridges in the M2 BMG with M3 RA shall not be unsafe for the gunner. 3.4.6.4 Hot chamber effect. A cartridge inserted in the chamber immediately following the firing of 100 cartridges shall not fi
43、re (cook off). In addition the cartridge shall not deform to I the extent that clearing of the weapon is made difficult following L the proper waiting period. 3.4.6.5 Chemical compatibility. The reliability of the cartridge shall not be less than .900 when fired in the M2 BMG with materials: I b I M
44、3 RA after having been immersed in the following lubricants and Specification Material MIL-L-46000 MIL-L-14107 MIL-L-2104 MIL-L-46167 MIL-L-63460 VV-L-800 MIL-C-372 0-1-503 0-T-620 Lubricant, Semi-Fluid (LSA) Lubricating Oil, (LAW) Lubricating Oil, (ICE, T) Lubricating Oil, (ICE, A) Lubricant, (CPW)
45、 Lubricating Oil, (PL-S) Bore Cleaner, (RBC) Insect Repeant Trichlorethane Solvent P-D-680 Dry Cleaning Solvent (SD-1) 3.4.6.6 Belt pull. The cartridge shall function in the M2 BMG with M3 RA when a 100 round belt of cartridges is loaded in the weapon and allowed to hang freely. not burst or disinte
46、grate in the barrel or in flight when fired. O 3.4.6.7 Bullet inteqrity. The bullet of the cartridge shall 3.4.6.8 Ricochet. The bullet or bullet fragments shall not ricochet back more than 25 meters when fired at wood, metal, or masonry targets at a distance of 50 meters, nor outside the safety fan
47、 as shown in Figure 1 when bullets are fired at level ground. 3.4.6.9 Muzzle flash. The muzzle flash made by firing cartridges in the M2 BMG with M3 RA shall be visible in darkness from 100 meters in front of the weapon. 3.4 cartridg problems .6.10 Foulinq. The fouling produced by firing 1000 es sha
48、ll not cause more than one weapon stoppage, safety , and shall be readily removable using standard cleaning hethods. The fouling produced by firing 1000 cartridges shall not cause a change in cyclic rate from the first 100 rounds to the final 100 rounds greater than 15%. The fouling produced by firi
49、ng 1000 cartridqes shall not increase the dispersion more than 15% beyond the a;erage mean radius obtained during initial dispersion tests. 7 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-C-70723 m 9999906 l1852250 371 m MIL-C-70723 (AR) 3.4.6.11 Tarqet kill. The test cartridges shall mark standard polyethylene and cardboard IIE“ and IIF“ silhouette targets sufficientl
