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Page Title:
Packaging, Packing, and Marking Inspection |
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|  MIL-C-46553B
4.4.5 Packaging, Packing, and Marking Inspection. -Inspection for packaging,
packing, and marking shall be in accordance with MIL-STD-644, as applicable.
4.4.6 Inspection Equipment.-Index of Inspection Equipment List No. IEL
7259425 identifies the applicable Inspection Equipment List (IEL) required
to perform examination and tests prescribed herein. Equipment design shall
be in accordance with code designation on the applicable IEL <reference is
made to Inspection Equipment List for definition of coding, Dwg. B11075228,
a detail of IEL 7259425).
4.5 Test Methods and Procedures.
4.5.1 Projectile Torque. -Each cartridge of the test sample shall be marked
with a light scratch extending axially across the rotating band onto the
case neck. Torque specified shall be applied slowly to the projectile.
Movement of the projectile with respect to the cartridge case, detectable
by misalignment in the scratch mark, shall be recorded.
4.5.2 Projectile Extraction.-The method of test shall be as specified in
AMCR 715-505, Volume 8.
4.5.3 Propellant Contamination. -The propellant from each of the cartridges
tested for projectile extraction shall be examined visually for contamination,
as prescribed by AMCR 715-505, Volume 8.
4.5.4 Electrical Resistance.
4.5.4.1 Primed Cartridge Case. -The equipment and circuitry specified in
IEL 7258849 (a detail of IEL 7259425) shall be used to measure the resistance
of the primer in each primed cartridge case.
4.5.4.2 Verification. -A Simpson Volt-Ohm-Ammeter, M260, or approved equal,
will be used to measure the resistance of the primer in each primed cartridge
case from the projectile extraction test sample. Only the RX100 and RX10,000
scales of the meter will be used in order to limit the applied voltage and
current, respectively, to 7.5 volts and 1.4 milliamperes, maximum.
4.5.5 Velocity, Pressure and Waterproofness. -The methods of test shall be
as specified in AMCR 715-505, Volume 8. Statistics necessary for testing
(see 6.8)
of results against acceptance criteria shall be computed.
4.5.6 Accuracy. -The method of test and measurement of targets shall be
as specified in AMCR 715-505, Volume 8. The specified range may be shortened
in decrements of 100 yards, to a minimum range of 200 yards. For ranges
less than 600 yards the average mean radius shall be reduced in direct pro-
portion to the reduction in range.
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