 |
|||
|
|
|||
| ||||||||||
|
|  MIL-C-46934B (MU)
PUBLICATION
AMCR 715-505
- Ammunition Ballistic Acceptance Test Methods, Volume 3,
Volume 3
Test Procedures for 7.62mm Cartridges
(Copies of specifications, standards, drawings and publications required by suppliers in
connection with specific procurement functions should be obtained from the procuring
activity or as directed by the contracting officer.)
REQUIREMENTS
3.
3.1 General. - The cartridge shall comply with the requirements specified on
Drawing C8597555, referenced specifications and the following:
3.2 Initial production sample. - Unless otherwise directed by the contracting officer,
an initial production sample shall be required.
3.3 Bullet extraction. - The force necessary to extract the bullet from the cartridge
case shall be not less than 20 pounds.
3.4 Residual stress. - The cartridge case shall not split when subjected to one
percent mercurous nitrate solution for 15 minutes.
3.5 Accuracy. - The average of the mean radii of all targets of the sample cartridges,
fired at 600 yards, shall not exceed 3.5 inches.
3.6 Velocity. - The average velocity of the sample cartridges, conditioned at 70 2
Fahrenheit (F), shall be 2,550 feet per second (ft/sec) plus or minus 30 ft/sec, at 78 feet
from the muzzle of the weapon. The standard deviation of the velocities shall not exceed
28 ft/sec .
3.7 Chamber pressure. - The average chamber pressure of the sample cartridges,
conditioned at 70F 2F, shall not exceed 50,000 pounds per square inch (psi).
Neither the chamber pressure of an individual sample cartridge, nor the average chamber
pressure of the sample cartridges plus three standard deviations of chamber pressure,
shall exceed 55,000 psi.
3.8 Port pressure. - The average port pressure of the sample cartridges, conditioned
at 70 F 2F. , shall be 12,500 psi 2,000psi.
Function and casualty. - The cartridge shall function without casualty.
3.9
|
|
Privacy Statement - Press Release - Copyright Information. - Contact Us |
Click
here for thousands of PDF manuals