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Page Title:
Table IV. First article inspection - function and casualty firing defect acceptance - rejection criteria. |
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|  MIL-C-70726A (AR)
First article inspection - function and casualty
TABLE IV.
firing defect acceptance - rejection criteria.
Rejection
Acceptance
Number
Number
Defect Description
1
2
Misfire
1.
Weapon stoppage attributable to
2.
2
3
ammunition
Separation of case components
3.
(when applicable)
14
13
a. Partial
1
0
b. Complete
Gas leaks between case components
4.
6
5
(when applicable)
1
0
Failure to extract
5.
Primer-defects:
6.
a. Perforation in the primer cup
25
24
caused by the firing pin
b. Escape of gas around the primer cup
8
7
(excluding a. above)
1
0
Blown primer
1
0
d. Dropped primer
e. Escape of gas around the primer cup
15
14
more than 50% of the periphery
Case casualties
7.
a. Longitudinal split
44
45
(1) Neck (I)
1
0
(2) Body (K)
14
13
(3) Body (J)
1
0
(4) To Head (L)
1
0
(5) Through head (M)
14
13
(6) Shoulder (S)
b. Circumferential rupture
(1) Partial - neck, shoulder,
2
3
or body (S, J, or K)
1
0
(2) Partial - case base (L)
1
0
(3) Complete
1
0
Case burn through
8.
NOTES
Occasionally the last round of a continuous belt due
to the light weight of the cartridge case, will not fully eject
from the weapon. This type of failure shall not be classified as
a weapon stoppage nor shall it be recorded as a defect chargeable
to the ammunition. All other stoppages attributable to the
ammunition, with the exception of misfire, complete
circumferential rupture, or failure to extract, shall be included
in this defect category.
For location of defects indicated in parenthesis, see
drawing 7643674.
18
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