I use SPPs in all of them. When I shot .38 Super, I never got into the very top end loads, so SRPs were not needed to prevent blown/pierced primers.
LRPs don't fit in LPP holes, so it's a non-issue in .45acp.
.357/.38? again, no need, and the recipes call for SPPs or SPMs. SRP would change pressures.
Even in .357/.38 carbines I use SPPs.
Last edited by Calliope; 09-23-2011 at 10:35 AM.
Reason: ETA, .45acp large primers
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