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|  MIL-C-70725A (AR)
4.5.3.1, Continued - Notes:
Conducted simultaneously with function and casualty.
100 rounds will be evaluated at each temperature (+20C,
-20C, +50C) in each weapon (M16Al, M16A2). In the
combined results for each weapon type (300 rounds), failure
of five or more cartridges to comply with the applicable
requirements shall be. cause for rejection of the lot. If
more than two, but less than five cartridges fail in the
first test, a second sample consisting of double the number
of cartridges in the first sample shall be evaluated. The
lot shall be rejected if in the combined first and second
sample, five or more cartridges fail to comply with the
requirement.
4.5.4 Test samples. Only cartridges having met the visual
and dimensional requirements shall be used in the ballistic
tests, and shall have been selected in such a manner that the
sample is representative of the entire lot. The cartridges shall
be thoroughly mixed before being divided into samples for the
various tests.
4.5.5 Function and casualty retest. The lot shall be
rejected when function and casualty defects plus firing defects
observed in all other firing tests exceeds the acceptance
criteria of Table IV. A second sample, consisting of double the
quantities. specified under the function and casualty test, shall
be fired. The retest quantity shall be fired in accordance with
4.6.8 and Appendix C. If the total number of defects in the
combined first and second samples exceeds the acceptance criteria
of Table IV, the lot shall be rejected. If, in testing a second
sample, defects other than those for which the second sample is
being retested should occur to the extent that they exceed the
acceptance criteria, the lot shall be rejected.
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