I'm gonna state that I didn't read all the way through, but guess what this is about---putting a check on a PB boolit...... I've done it, it's not a problem. It's a PITA, but not an issue.. Cut a disc slightly larger than boolit diameter, shove the boolit through a lee sizer point-down with the disc over the base, and there ya go. I wouldn't rely on long range accuracy,. BUT, it checks as non-check boolit just fine. So long as you aren't seating below the shoulder so it blows off, it should ride the bore all the way through and out just fine.
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