JSH
Gold $$ Contributor
But, we’re the primers flat? LOLI had one Boom back when the 204 Ruger first came into being. Was testing unlisted powders and got a little too ambitious venturing up over 4,000 fps with Sierra 39gr BKs. The 4th bullet in a 5 shot group flew apart in the bore and all hell broke loose! Blew my 700 bolt face apart and the shrapnel came out of the muzzle in a shotgun pattern destroying the optical chronograph I was shooting thru. But at least I know where absolute max pressure is located! Lol!