Is the SP101 in .32 magnum the same frame size as the .357 magnum version? I have one in .32 H & R mag. and I've been working on some +p and +p+ versions of this cartridge. I reason that if this frame will handle .357 pressures it should certainly handle a higher-pressure version of the .32 mag. It's a shame that this great little cartridge was originally introduced in the weaker H. & R. revolvers with their 20,000 psi. limit. I'm an experienced handloader of 15 years and have been cautiously investigating this prospect. So far I've had some interesting results, including a 100 gr. j.h.p. at 1350 f.p.s. and, seriously, a 150 gr.,.310 diameter l.f.p. intended for the .30-30 that I've driven to 870 f.p.s., all with no signs of serious pressure problems. Does anyone else have any experience with +p .32 mag. loadings? I would be very interested in any data you may have.
+p SP101 .32 mag.
- Thread starter Dithsoer
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I'm pretty sure the frame size is the same. I base that on the frame size being the same for the 22 and 357, it would make sense for the 32 as well. I know next to nothing about reloading but I don't see where any harm would happen as long as you kept pressures below that of 357.
ArchAngelCD
Member.
I wouldn't worry about the frame but the cylinder might be a totally different matter. Be careful because that will be your point of failure in this case.
DWARREN123
Member
SP's have the same frames, some internal differences such as the transfer bars and cylinders. I load Hornady 100gr HP/XTP's to around 1300fps. Mine likes them hot and heavy. These rounds shoot well in my Marlin 1894CB also.
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