Starline brass is notoriously "heavy-duty". In fact they specifically tell the BP shooters using their
45 rifle brass that it should be annealed prior to any use with BP. The 32S&W Long pressure standards
are akin to that: 12,400CUP and/or 15,500 psi (SAAMI provides both references)
I'm going to assume you have the same problem -- thicker brass than such pressures (or less)
will seal. I'd suggest annealing the top 1/3 near the mouth of 3-4 cases and see if that solves the
problem. (Take care with a good heat sink on the base)
Last edited by mehavey; April 8, 2013 at 12:28 PM.