Just how accurate/exact are "pressure signs?"
What standards or specs are there for them?
I've shot hundreds of 7.62 NATO proof loads (65,000 CUP) and none of their fired cases looked any different than the same case, powder charge and primer used in standard loads (50,000 CUP). Standard load used a 147 gr bullet, proof load used a 172 gr bullet.
US Navy Distinguished Marksman Badge 153
Former US Navy & Palma Rifle Team Member
NRA High Power Master & Long Range High Master
NRA Smallbore Prone Master
Last edited by Bart B.; May 24, 2013 at 01:37 PM.