MIL-DTL-48623A (AR)
Table V. Function and casualty firing defect criteria - Continued
DRAWING NUMBER
CARTRIDGE, CALIBER .50, BLANK,
7553097
M1A1
Classificatio
Criteria 1/
n
Defect Description
First Article
Lot Acceptance
First
Cumulative
Acc
Rej
Sample
Sample
Notes:
1/. No second sample permitted. Lot shall be rejected.
2/. All stoppages attributable to the ammunition, with the exception of misfire, complete
rupture or failure to extract, observed in all tests shall be included.
3/ Failure of any burst to comply with the applicable requirement shall be cause for
rejection of the lot subject to the testing of a second sample consisting of double the
number of cartridges in the first sample. Failure of any burst in the second sample to
comply with the applicable requirement shall be cause for rejection of the lot. The second
sample, if required, shall only be fired in the weapon type in which the failure occurred.
4/ For location of defects indicated by letter in parentheses, see Dwg 7643674.
4.5 Methods of verification.
4.5.1 Residual stress (mercurous nitrate). The test shall be conducted in
accordance with SCATP-7.62mm Chapter 2, Mercurous Nitrate Test Procedure.
4.5.2 Screen perforation . The test shall be conducted in accordance with SCATP-
7.62mm Chapter 2, Screen Perforation Test.
4.5.3 Muzzle flash. The test shall be conducted in accordance with SCATP-
7.62mm Chapter 2, Flash Test.
4.5.4 Fouling. The test shall be conducted in accordance with SCATP-7.62mm
Chapter 2, Fouling Test.
4.5.5 Function and casualty. In these firings, the weapons shall be at room
temperature at the beginning of the test, and the machine guns shall be cooled between
bursts. The function and casualty test shall be conducted in accordance with SCATP-
7.62mm Chapter 2, Function and Casualty Test. The number of cartridges to be fired
shall be as specified below. Observation for compliance with Table V, as applicable,
shall be made. Cyclic rate of each weapon shall be observed.
The test shall be conducted as indicated below:
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