MIL-DTL-46610F
TABLE IX. Firing defect acceptance criteria
Acceptance Number
First Sample
Cumulative
Defects
(First & Second Sample)
Misfire (Failure of primer to fire)
0
1
Primer cup base radius split or rupture
0
1
Primer perforation
0
1
Squib (incomplete function of primer)
0
1
4.5 Methods of inspection.
4.5.1 Sensitivity test. Ambient temperature - The primer shall be inserted into the primer
pocket of the cartridge case so that the surface of the primer cup, when measured from the center
of the primer, is within the tolerance specified on the cartridge drawing. The test shall be
performed in accordance with the complete run-down method described in TECP 700-700, Vol.
III, SCATP - 5.56mm, SCATP - 5.56mm (Heavy Bullet), SCATP - 7.62mm or SCATP Cal.
.45 as applicable. A retest is permitted using a sample of 100 primers at each height. .
4.5.1.1 Two - height method. The two-height method of testing for sensitivity may be
used in lieu of the complete run-down of 4.5.1 test when sensitivity results for five consecutive
lots have been found to comply with the requirements of 3.4 and computed skewness values are
found to be not greater than .787 or not less than -.787 (see 6.4). However, one out of every 10
lots submitted shall be tested by the complete run-down method. Failure in any test to meet
sensitivity or skewness requirements shall be considered sufficient cause to revert to use of the
run-down method on each lot. The two-height test shall be conducted in accordance with the
two-height method described in SCATP - 5.56mm or SCATP - 5.56mm (Heavy Bullet). A retest
is permitted. The retest shall be conducted using a sample of 100 primers at each height. All
retests shall be conducted using the complete run-down method of 4.5.1.
4.5.2 Action time. The primers shall be inserted and crimped in cartridges cases. The
primed cases shall be assembled into cartridges and fired for action time. The tests shall be
conducted in accordance with the methods and procedures of SCATP - 5.56mm or SCATP -
5.56mm (Heavy Bullet) as applicable.
4.5.3 Function and casualty. The primer shall be inserted and crimped in cartridge cases.
The primed cases shall be assembled into cartridges and fired for function and casualty in
accordance to Table X. The weapon used shall be at room temperature, shall be not less than 60
degrees F at the beginning of tests. The tests shall be conducted in accordance with TECP 700-
700, Vol. III and the following: SCATP 5.56mm, SCATP 5.56mm (Heavy Bullet), SCATP
7.62mm, SCATP Cal. .45 as applicable.
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