ARMY MIL-B-70445 (3)-1994 BULLET CAL 30《CAL 30型子弹》.pdf

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1、MIL-B-70445 (3) 9 9999906 1978527 930 I INCH-POUNDI MIL-B-70445 (AR) AMENDMENT 3 22 April 1994 SUPERSEDING AMENDMENT 2 22 July 1991 MILITARY SPECIFICATION BULLET, CAL. 30 This amendment forms a part of MIL-B-70445 (AR), dated 9 December 1983, and is approved for use by the US Army Armament, Muniticn

2、s, and Chemical Command, and is available for use by all Departments and Agencies of the Department of Defense. PAGE 2 2.1.1: Delete “MIL-STD-1188 -Commercial Packaging of Supplies and Equipment“ and substitute “ASTM-D-3951 - Standard Practice for Commercial Packaging“. * 2.1.2, under Drawings: Add

3、“8597555 - Cartridge, 7.62mm, NATO, Special Ball, M118“ and “P8595434 - Special Packaging instructions“. Under Inspection Equipment Drawings: Add “EL 8657272 - Accuracy“ and “EL 8657279 - Velocity“ 3.2, after 8595432: Add “or alternatively Dwg. 8597555“. PAGE 3 * 4.3.1: Delete “The first article sam

4、ple shall consist of the following items in the sample quantities as indicated.“ and substitute “The first article sample shall consist of the following items as appropriate for either the M72 or M118 cartridge in the sample quantities as indicated.“ AMSC N/A 1 of 3 FSC 1305 DISTRIBUTION STATEMENT A

5、. Approved for public release; distribution is unlimited. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-B-70445 (3) m 9999906 L97852 ? m MIL-B-70445 (AR) AMENDMENT 3 PAGE 3 (Continued) * 4.3.1 : Add “Cartridge, 7.62mm, NATO, Special Ball, M118

6、8597555 150“ Under Quantity: Delete “400“ and substitute “150“ 4.3.3: Delete “and Table II“ and substitute “and Table I“. PAGE 4 * Table I: Add “Accuracy (Alternative) 150 L/ 2/ 3.2 4.5.2 EL 8657272, EL 8657279“ PAGE 8 4.4.2.3, Major 115, under Inspection Method: Add “4.5.1“ * 4.4.2.3: Add “Major 11

7、6 Accuracy (Alternative) 90 L/ 3/ 3.2 4.5.2 EL 8657272, EL 8657279“ PAGE 9 * 4.5.1: Delete in its entirety and substitute the following: “4.5.1 Accuracy. The sample shall be loaded into cartridges assembled in accordance with Dwg. 8595432, consisting of Case, Caliber .30 (Dwg. 85954331, Propellant,

8、IMR-4895 (Dwg. 105347891, and primer, percussion, No. 43 (Dwg. 10535489). To establish the required propellant charge weight, a 20-round sample shall be tested for velocity in accordance with Section 18 of SCATP-7.62. If the average corrected velocity is not within 2640 f 30 feet per second (fps) or

9、 the velocity standard deviation exceeds 28 fps, a new charge weight must be established. Once the charge weight is established, the accuracy sample shall be assembled in accordance with Dwg. 8595432, consisting of the above listed components and the established propellant charge weight. The charge

10、weight and the overall length of each assembled cartridge from both the assessment quantities and accuracy sample(s) shall be measured and the values recorded. The accuracy test shall be conducted in accordance with Section 3 of SCATP-7.62 using a range of 600 yards. Alternately, a range of 300 yard

11、s may be used with the average of the mean radii of the targets multiplied by a conversion factor of 2.3. A commercially available Caliber .30 cartridge case conforming to SAAMI standards may be used as a substitute when the military case, P/N 8595433, is not available for use. I 2 Provided by IHSNo

12、t for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-B-70445 (3) 9999906 L97B529 703 MIL-B-70445 (AR) AMENDMENT 3 PAGE 9 (Continued) * Add new paragraph 4.5.2 as follows: “4.5.2 Accuracy (alternative). The sample shall be loaded into cartridges assembled in accordance

13、 with Dwg. 8597555, consisting of Case, 7.62mm, NATO (Dwg. 10521997), Propellant, WC846 (Dwg. 10534784) or IMR4895 (Dwg. 10534789) or WC750 (Dwg. 12953463) and primer, percussion, #36 (Dwg. 8594094) or primer, percussion, #34 (Dwg. 10522621) or primer, percussion #43 (Dwg. 10535489). The propellant

14、and primer selected shall be reported. To establish the required propellant charge weight, a 20-round sample shall be tested for velocity in accordance with Section 18 of SCATP-7.62. If the average corrected velocity is not within 2550 k 30 feet per second (fps) or the velocity standard deviation ex

15、ceeds 28 feet per second, a new charge weight must be established. Once the charge weight is established, the accuracy sample shall be assembled in accordance with Dwg. 8597555, consisting of the above listed components and the established propellant charge weight. The accuracy test shall be conduct

16、ed in accordance with Section 3 of SCATP-7.62 using a range of 600 yards. Alternately, a range of 300 yards may be used with the average.of the mean radii of the targets multiplied by a conversion factor of 2.3.“ * 5.1: Delete in its entirety and substitute the following: “5.1 Preservation and packa

17、qinq. Packaging shall be in accordance with Special Packaging Instructions P8595434.“ * 5.2: Delete in its entirety and substitute the following: “5.2 Unitization. Unitization for Levels A, B and C shall be in accordance with MIL-STD-1169.“ The margins of this amendment are marked with an asterisk o

18、r vertical lines to indicate where changes (additions, modifica- tions, corrections, deletions) from the previous amendment were made. This was done as a convenience only and the Government assumes no liability whatsoever for any inaccuracies in these notations. Bidders and contractors are cautioned

19、 to evaluate the requirements of this document based on the entire content irre- spective of the marginal notations and relationship to the last previous amendment. Custodian: Army-AR Preparing activity: Army-AR (Project 1305-AE78) 3 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-