MIL-C-46396A(MU)
4/ Failure of the cartridges to comply with the applicable requirement shall
be cause for rejection of the lot subject to testing of a second sample
consisting of double the quantity of cartridges used in the first test.
Failure of the cartridges in the second sample to comply with the applica-
ble requirement shall be cause for rejection of the lot.
Failure of 15 or more cartridges to comply with the applicable requirement
shall be cause for rejction of the lot. If more than five but less than
15 cartridges fail in the first test, a second sample consisting of double
the number of cartridges in the first sample may be tested. The lot shall
be rejected if, in the combined first and second sample, 15 or more
cartridges fail to comply with the applicable requirement.
The lot shall be rejected when function and casualty defects plus all
other firing defects exceed the acceptance number for the cumulative
sample in Table III. If the number of defects found in the first tests
exceeds the acceptance number for the first sample, but is equal to or less
than the acceptance number for the cumulative sample, a second sample,
consisting of double the quantities specified under function and casualty
test, shall be fired. If the total number of defects in the combined first
and second sample exceeds the acceptance number for the cumulative sample
the lot shall be rejected. If in testing a second sample, defects other
than those for which the second sample is being tested should occur to the
extent that they exceed the acceptance number for the cumulative sample,
the lot shall be rejected.
The bullets extracted from the cartridges in the bullet extraction test
shall be used for this test. Failure of seven or more bullets to comply
with the applicable requirement shall be cause for rejection of the lot.
If more than three but less than seven bullets fail in the first test, a
second sample consisting of double the number of bullets in the first
sample shall be tested. The lot shall be rejected if in the combined
first and second sample, seven or more bullets--fail to comply with the
applicable requirement.
4.3.3.2 Firing defects.- Firing defects and acceptance numbers shall be
as specified in Table III.
Table III
Acceptance
First
Cumulative
Defects
Sample
(1st & 2nd Sample)
1.
Misfire
1
2
2.
Bullet remaining in bore 1/
9
0
Primer leak
3.
a. perforation in firing pin indent in
primer cup
1
2
b. Escape of gas through primer cup
other than 3a
1
2
c. Escape of gas around primer cup
more than 50% of periphery
4
6
7
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