A quick plug into GRT using defaults for case capacity and COAL gives a muzzle velocity of 2853fps.
It also warns working pressure is close to maximum permissible gas pressure, and there is a risk of overpressure due to tolerances.
A quick plug into GRT using defaults for case capacity and COAL gives a muzzle velocity of 2853fps.
It also warns working pressure is close to maximum permissible gas pressure, and there is a risk of overpressure due to tolerances.
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