MIL-DTL-1318C (AR)
2.4 Order of precedence. In the event of a conflict between the text of this
document and the references cited herein, the text of this document takes precedence.
Nothing in this document, however, supersedes applicable laws and regulations unless a
specific exemption has been obtained.
3. REQUIREMENTS
3.1 First article. When specified (see 6.2), a sample of the M17 cartridges shall
be subjected to first article inspection in accordance with 4.3.
3.2 Conformance inspection. A sample of the M17 cartridges shall be subjected
to conformance inspection in accordance with 4.4.
3.3 Cartridge. The cartridge shall comply with all requirements specified on
Dwg 7672165.
3.4. Bullet extraction. The force required to separate the bullet from the cartridge
case shall not be less than 200 pounds.
3.5 Residual stress. The cartridge shall not split or crack when subjected to a one
percent mercurous nitrate solution for 15 minutes.
3.6 Waterproof. The cartridge shall not release more than one bubble of air when
subjected to a pressure differential of 7.5 pounds per square inch (psi) for 30 seconds.
3.7 Accuracy. The average of the mean radii of all targets of the sample
cartridges, fired at 600 yards, shall not exceed 12.0 inches or, when fired at 200 yards,
shall not exceed 6.25 inches.
3.8 Action time. The action time (overall primer ignition, propellant burning,
plus the time taken for the bullet to exit the barrel) of the cartridge, conditioned at 70°F
± 2°F, shall not exceed 4 milliseconds (ms).
3.9 Velocity. The average velocity of the sample cartridges, conditioned at 70°F
± 2°F, shall be 2,905 ft/sec ± 30 ft/sec at 78 feet from the muzzle of the weapon. The
standard deviation of the velocities shall not exceed 36 ft/sec.
3.10 Chamber pressure. The average chamber pressure of the sample cartridges,
conditioned at 70°F ± 2°F, shall not exceed 65,000 psi.
3.11 Function and casualty. The cartridge shall function without casualty.
3.12 Air tightness of base closer seal. The bullet shall not release more than one
bubble of air under the application of a pressure differential of 2 psi for 5 seconds.
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