Hi all,
I just got done casting some boolits for the .45 acp, I’m useing an NOE .454-237 mould and size them to .452. After I sized them I noticed many had a very thin flashing on the boolit base. It’s almost like after they went though the sizer a very thin bit of lead not as thick as a piece of paper formed at the bottom edge of the boolit. I think I can easily remove it by very lightly rubing the boolit base on a sheet of sand paper, they’re so thin I don’t think it would take more than one or two passed to knock them off the boolit. My question is should I even remove them? And what causes them?