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|  MIL-C-46553B
4.4.4 (Cont)
6/ Velocity. -If the sample fails to conform with either or both require-
ments, a retest sample of 40 cartridges shall be tested for the failing
parameter(s) (average, sample standard deviation). The lot shall be re-
jetted if the retest sample fails to conform with the applicable require-
ments.
(see 6.8.1)
7/ Pressure. -If the average pressure (X) plus 0.84 times the average range
(R)of the sample cartridges exceeds 51,000 psi, a retest sample of 40
cartridges shall be tested. The lot shall be rejected if the average
pressure (X) plus 0.91 times the average range (R) of the retest sample
(see 6.8.2)
fails to conform with the applicable requirement.
8/ Waterproofness. -If the average velocity (wet) of the sample fails to
conform with the applicable requirement, a retest sample of 40 cartridges
shall be tested. The lot shall be rejected if the average velocity (wet)
differs by more than 100 fps from the average velocity (dry) of 40 addi-
tional sample cartridges fired to establish a new base for comparison.
The lot shall not be penalized for failure of the last named sample car-
tridges to conform with the requirement of 3.7.
9/ Accuracy. -If the average mean radius of the sample cartridges exceeds
the applicable requirement, a retest sample of 100 cartridges shall be
tested_. The lot shall be rejected if the average mean radius of ten
accuracy targets exceeds 15 inches at the same range.
10/ Action Time. -If any sample cartridge fails to meet the requirement
for action time, the lot shall be rejected.
11/ Function and Casualty. -The lot shall be rejected if any malfunction
or firing casualty of Table 11 occurs in number(s) equal to or greater
than the applicable "Rej" rider. Except as otherwise provided, if mal-
functions or casualties occur in excess of the applicable "Acc" number,
but less than the applicable "Rej" number, a second sample of 400 car-
tridges shall be selected. The lot shall be rejected if in the combined
samples, malfunctions or casualties occur in numbers equal to or greater
than the applicable "Rej" rider.
4.4.4.1 Firing Defects. - Firing defects and associated criteria shall be
as specified in Table II. For defect definitions, see AMCR 715-505,
Volume 8.
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