I have been trying to adjust a .45 acp roll crimp die. I am loading for a 1911. I need to get it to close up about .002 more to get a good fit in my chamber, but all I can seem to do is crush a case. After about 50 rnds. I am going to give up and buy a taper crimp die. I got these carbide rcbs dies for a very good price, but it's not a bargain if I can't get them to work right. I have tried every trick I know of, even adjusting off of a loaded factory round, and spending 45 minutes with the rcbs guy on the phone (very helpful guy by the way). I can make a roll crimp work for a M1 carbine, but for some reason not a .45 acp. What am I doing wrong?
45 acp is a taper crimp case design. NO ROLL CRIMP. .30 Cal carbine is also not a roll crimp design case. Go back to basics and learn the difference in a roll crimp, rimmed pistol case and a taper crimp rimless design case.