I currenty load .45ACP with 200gr SWC cast bullets.(my own) 4.9 gr of W231. I've been roll crimping almost from the beginning almost 5 yrs. ago. Without it, sometimes I would expierience feeding problems. A friend suggested roll crimps might help. It did. Now my old 1911 seems to be getting looser and looser. Do I have a pressure problem here?
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