rebs
Gold $$ Contributor
does anyone prefer these primers Federal Premium Gold Medal Small Rifle Match Primers #205M
I believe the 205MAR has a .025 cup vs the .022 cup of the 205M, I don’t have the equipment to measure the cup thickness but the 205m pierces in my .223AI loads where as the 205MAR does not, one day someone will measure them and we will no for sure…I have always used the 205M until recently and switched to the 205MAR and haven't noticed any difference other than the head stamp. They cost $100 per 1K out the door with tax at my local dealer.