JSP's are common in some calibers like .357 Mag...as target ammo ...I see them all the time in MagTech ..as an example .../ in fact I also reload a 158gr JSP as well in .357 Mag and in .38 spl ( bullets are from Montana Gold )...
So for me, I consider the 158 gr JSP in .357 Mag...a general use cartridge. I shoot about 6,000 - 8,000 of them a year at my local range.
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