GI Primer Pocket crimp
GI Primer pocket crimp. Is little problem for me as the effort to get rid of it gives me the best brass possible and the Rocket shaped inside-outside neck reamer mounted in my drill press can help me to zip them all off equally. I also have an old Lachmiller and a C-H primer pocket swaging set and with my Star Progressive reloader the alignment of the primer seating station is so accurate that I can load GI 45acp brass without removing the crimp as long as I only use Federal or Winchester primers.
I refuse to use CCI primers as they have always been dimensionally unstable. In other words their size, roundness, height can vary and they can have burrs, the anvil heights can vary and the anvils can be cocked and all explosions I have investigated were caused by CCI primers up to 1979. Also when using automated high volume reloaders the CCI paper primer boxes shed slivers of paper in the feed mechanism of the reloader causing primer feeding jams so the primers had to be shaken in a large wire screen to sift the paper slivers out.
GI brass is worth the effort as that is what all 45acp weapons were designed to use when the 45acp weapon was invented and adopted by our Government. It has served us well for almost a century.
Fitz