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Old April 8, 2013, 12:12 PM   #5
mehavey
Senior Member
 
Join Date: June 17, 2010
Location: Virginia
Posts: 2,825
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.
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