+p SP101 .32 mag.


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Dithsoer
February 20, 2007, 09:55 PM
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.

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kevin387
February 20, 2007, 10:41 PM
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
February 20, 2007, 11:12 PM
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
February 21, 2007, 02:01 AM
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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