MIL-DTL-12779D
TABLE IV. First article and conformance tests Continued.
Conformance Criteria
Inspection
Requirement Paragraph
Method
Test
Qty Acc
Rej
Reference
Range
4.5.6
70° ± 2°F
20
3/
3.9
0° ± 2°F
20
3/
3.9
120° ± 2°F
20
3/
3.9
Function and casualty
6/
3.10
4.5.7
Cal. .45 Line Throwing
Gun, Mark 1, Model 1
Notes:
1/ Failure of two or more cartridges to comply with the applicable requirement shall be cause
for rejection of the lot. If one cartridge fails in the first test, a second sample consisting of
double the number of cartridges in the first sample may be tested. If any failing cartridges are
found in the second sample, the lot shall be rejected.
2/ Prior to assembly into cartridges, a sample of primers from each primer lot shall be tested for
sensitivity. The test sample shall consist of the number of primers required for performance of
a complete run-down test wherein 50 primers are tested at each height. If the average critical
height (H) plus five standard deviations (5 sigma) exceeds 18 inches, or if the average critical
height (H) minus two standard deviations (2 sigma) is less than 3 inches, the lot of primers shall
be rejected subject to performance of a second complete run-down test wherein 100 primers are
tested at each height. Failure of the second sample to comply with the above criteria shall be
cause for rejection of the lot of primers.
3/ Failure of two or more cartridges to comply with the applicable requirement shall be cause
for rejection of the lot. If one cartridge fails in the first test, a second sample, consisting of
double the quantity of cartridges used in the first test for the temperature at which the failure
occurred, may be tested. If any failing cartridges are found in the second sample, the lot shall
be rejected.
4/ Failure of the cartridges in any sample to comply 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 for the temperature or temperatures at which the failure occurred. Failure of the
cartridges of the second sample shall be cause for rejection of the lot.
5/ Velocity and pressure are obtained simultaneously.
6/ Observation for function and casualty defects shall be made during the firing of all ballistic
tests. The lot shall be rejected if firing defects exceed the acceptance number in Table VI.
8
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