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Page Title:
Table VI. Function and Casualty Firing Defect Classification |
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|  MIL-C-70726A (AR)
TABLE VI
QUALITY CONFORMANCE INSPECTION
FUNCTION AND CASUALTY FIRING DEFECT CLASSIFICATION
Acceptance Numbers
Defect
First
Category
Cumulative
Sample
Defect Description
Major
2
1
1. Misfire
2. Weapon stoppage attributable to
Major
3
2
ammunition
3. Separation of case components
(when applicable)
Minor
3
1
a. Partial
Major
0
0
b. Complete
4. Gas leaks between case components
Minor
3
1
(when applicable)
Major
1
0
5. Failure to extract
6. Primer defects:
a. Perforation in the primer
Minor
60
24
cup caused by the firing pin
b. Escape of gas around the primer
Minor
15
7
cup (excluding a. above)
c. Escape of gas around the primer cup
Minor
25
more than 50% of the periphery 12
Major
1
0
d. Blown primer
Major
1
0
e. Dropped primer
7. Case casualties
a. Longitudinal split
Minor
60
29
(1) Neck (I)
Major
2
1
(2) Body (K)
Minor
15
7
(3) Body (J)
Major
1
0
(4) To Head (L)
Major
1
0
(5) Through head (M)
Minor
65
27
(6) Shoulder (S)
b. Circumferential rupture
(1) Partial - neck, shoulder,
Minor
4
2
or body (S, J, or K)
Major
1
0
(2) Partial - case base (L)
Major
0
0
(3) Complete
Major
1
0
8. Case burn through
NOTES:
The lot shall be rejected when function and casualty
defects plus firing defects observed in all other tests exceed
the acceptance number for the cumulative sample in Table VI. If
the number of defects found in the first test exceeds the
acceptance number but is equal to or less than the acceptance
number for the cumulative sample, a second sample, consisting of
26
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