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|  MIL-C-48617A(AR)
6. 9.2 Metal part separation.
Separation or breakup of
projectile part(s), except rotating band separation, as evidenced by
recovery of the part(s) or fragment(s), or hole(s) in the
fragmentation screen(s).
6.9.3 Detached metal from cartridge case. Metal sheared or
missing from the fired-cartridge case exterior, such as rim or neck
shears. Shavings of metal from the interior wall of the case neck,
in the crimped area, shall not be considered as detached metal.
6.9.4 Rotating band separation. For classification as a
defect, there must be evidence by recovery of the band, or portion
thereof, or by hole(s) in the fragmentation screen(s). Normal band
fringing shall not be classed as a defect.
6.10 Testing precaution. If an open projectile impact area
is in use at the test facility, precaution should be used because of
the fire hazard.
6.11 Premature burst. A premature burst is considered to
have occurred if the projectile functions in the gun bore or prior
to impact.
6.12 Misfires. Misfiring test cartridges, except those from
the waterproofness test, shall be retested in equipment identified
in accuracy test. If a cartridge fails to function in that test,
examinations shall be conducted for the following conditions:
a.
Excessive primer seating depth.
b.
Metal slivers across primer insulator.
c.
Electrical continuity.
d.
Missing or obstructed case vent.
e.
Missing or insufficient primer composition or propellant.
f. Partially burned or contaminated primer composition or
propellant.
The lot shall not be penalized if condition a. is observed.
However, this condition shall be reported for information. The
"Acc" number shall be zero (0) and the "Rej" number 3, for misfires
associated with conditions b, c, or d. The second sample for
evaluation of misfires associated with conditions b, c, or d shall
consist of the function and casualty second sample (see 4.4.3.2) .
The lot shall be rejected if either condition e or f is observed.
Misfire(s) occurring in the waterproofness test shall be handled in
accordance with AMCR 715-505, Volume 8.
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