muzzle devices are not regarded for barrel length.
So GRT tells you you are over pressure... correct projectile, correct seating depth and correct powder?
How did you measure the pressure that you believe GRT calculated wrong?
muzzle devices are not regarded for barrel length.
So GRT tells you you are over pressure... correct projectile, correct seating depth and correct powder?
How did you measure the pressure that you believe GRT calculated wrong?
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