As to brass, I have a choice, new, fired, different brands, head stamps, years, foreign, domestic/commercial, my favorite is new unfired, next is once fired, that would be once fired in a trashy old chamber, for most moving the shoulder out requires fire forming, with cases that have been fired in a trashy old chamber, the shoulder has been moved out by someone else. For everything else there are forming dies, and the companion tool tool to the press,the feeler gage.
F. Guffey
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