could it be the brass instead of the primers?
I wonder if they are actually Large Rifle? A bit bigger than LP.
large rifle and large pistol the same size except for seating depth/ primer tallness i thought. i actually took some WW large rifle and seated them in the starline 45LC brass with no problems. test fired a few in the pistol and they work fine so thats what im gona use / do
I much prefer to work with CCI primers, but right now I can't find them anywhere, and X-Reload has plenty of CamPro primers at a reasonable $70 a brick.