USSR
Member
What with the Great Primer Drought of 2013, a few of us might be having a bit of a problem getting primers that we currently don't have. Since SPP's and SRP's are the same size, and I was testing a load that would greatly benefit from Magnum SPP's which I don't have, I thought I would try sub-ing a standard SRP. In consultation with resident HS-6 guru ArchAngelCD, I tried the following .357 Magnum loads using my cast 165gr bullets:
9.0gr HS-6 with a Winchester SPP
9.0gr HS-6 with a Tula SRP
9.2gr HS-6 with a Winchester SPP
9.2gr HS-6 with a Tula SRP
Results? Less smoke with the 9.2gr load with the SRP, and it seemed to perform just fine. Of course, work up your loads, but don't be afraid to try sub-ing a standard SRP for a powder type that really needs a magnum small pistol primer for good ignition. Just MHO.
Don
9.0gr HS-6 with a Winchester SPP
9.0gr HS-6 with a Tula SRP
9.2gr HS-6 with a Winchester SPP
9.2gr HS-6 with a Tula SRP
Results? Less smoke with the 9.2gr load with the SRP, and it seemed to perform just fine. Of course, work up your loads, but don't be afraid to try sub-ing a standard SRP for a powder type that really needs a magnum small pistol primer for good ignition. Just MHO.
Don