The Firing Line Forums - View Single Post - 30-06 M1 rifle ballistics

Swampy1 · December 5, 2007, 07:07 AM

Ditto both .30 cal and rgitslaff posts....

The pressure curve of M1 gas system safe ammo is determined by bullet weight and burn rate of the powder used, NOT by muzzle velocity.

Trying to figure out by rated velocity whether or not a load is M1 safe is not possible. It is quite easy to create two different loads, both using the same bullet, but with two different powders and have the one with the LOWER velocity have a HIGHER gas port pressure.

Best to all,
Swampy

Garands forever

December 5, 2007, 07:07 AM	#10
Swampy1 Senior Member Join Date: August 22, 2007 Posts: 130	Ditto both .30 cal and rgitslaff posts.... The pressure curve of M1 gas system safe ammo is determined by bullet weight and burn rate of the powder used, NOT by muzzle velocity. Trying to figure out by rated velocity whether or not a load is M1 safe is not possible. It is quite easy to create two different loads, both using the same bullet, but with two different powders and have the one with the LOWER velocity have a HIGHER gas port pressure. Best to all, Swampy Garands forever __________________ Pres-CEO Swampworks Inc. / JLK Bullets http://www.swampworks.com The difference between a Hot Dog and a Weenie is a very fine line. Never underestimate the power of human stupidity.