Be sure you warm up your roll crimper, I load 25 at a time and put them in a shell block and then crimp so the crimper doesn't cool between shells. Run your roll crimper over the shell for a smidge(it's not locked in stone your get the feel) before you put pressure on to roll in your crimp. I spray a little puddle of WD-40 on the drillpress table and dip my fingertip in it and wipe it on the inside edge of the crimper maybe once every ten shells, again you'll learn when it is needed, you don't use enough to muck up the shell. Things should roll easily, no need to reef on the handle. I'm using a BP single pin roll crimper in 12 and 16ga.

The far right shell I held too long and it started to shmeer the top edge.

[Linked Image from imagizer.imageshack.com]

You can tell by my crimps how much extra I leave for the crimp, around a 1/4" above the overshot disc.

Last edited by oskar; 05/27/21 05:30 PM.
After the first shot the rest are just noise.