I am roll crimping new Cheddite hulls that I trimmed to 2.5". I use a roll crimping die that I believe I got from BPI (90& sure of that) on my drill press with a wooden clamp that I built to hold the shell. I turn the die at 530 rpm, although using 800+ rpm didn't seem to make and difference. I'm not applying much pressure, though the hull seems full, it does not seem over full at all. (1 oz of 7.5s, sg16 wad).

Any suggestions about making more consistent (and prettier) crimps? I can't believe these are going to be very reusable.



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BrentD, (Professor - just for Stan)
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