MIL-DTL-60318C (AR)
TABLE I. VELOCITY AND PRESSURE
Zone*
Mean
Mean Pressure (PSI)
Velocity (fps)
Minimum
Maximum
1
640
N/A
N/A
2
695
N/A
N/A
3
765
9200
10500
4
860
N/A
N/A
5
990
N/A
N/A
6
1200
N/A
N/A
7
1525
31200
39000
* See paragraph 6.12.2.
3.4 Ballistic uniformity requirements. The propellant, when fired in the 105mm
M101A1 howitzer, M2A2 cannon with 75 percent remaining life (minimum) and the M1
projectile (33.00 +/- 0.02 pounds) shall comply with the following requirements at 70°F
and standard weapon conditions.
3.4.1 Uniformity of velocity. The standard deviation of velocity for the lot at
70°F shall not exceed 3.8 fps for Zone 3 or 3.4 fps for Zone 7.
3.4.2 Permissible Individual Maximum Pressure. The propellant at recommended
charge weight shall not produce a chamber pressure greater than 44,800 psi at any
operating temperature (-50°F to +145°F) when fired in a standard weapon.
3.5 Workmanship. The best commercial practices shall be used in the formulation
of propellant furnished under this specification, and all other applicable documents. The
propellant and its standard ingredients shall be protected from the action of direct
sunlight and acid fumes. No reground propellant or nitrocellulose shall be used in the
manufacture of propellant procured under this specification unless otherwise specified.
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