I loaded up some cast boolits, round nose flat top. Had no pressure signs, no pierced primers, no bulged cases, but four cartridges messed up case rims, failed to feed, some worked ok, some hung up on feed ramp. when I reloaded and kept the mag less than 7 worked fine, this is for a 1911 45 acp, two guns both 1911s both same problem. No factory crimp die, oh, and when I used fractory ammo was no problem in either gun. Is it possible a factory crimp die would solve my problem? used multiple mags same problem.