2ndtimer
Member
If you look at Prvi’s website, they (like Hodgdon and Alliant), test their .357 Magnum loads out of a 10” unvented test barrel. The velocities they show are not realistic for conventional revolvers with barrel lengths of 6” or less. If I had a Model 19, (given their penchant for cracking their forcing cones with hot magnum loads), I would shoot standard .38 Specials (148 gr full wadcutters or 158 gr lead round nose or SWC) for 90% of my shooting. Only occasionally, would I scrub the chambers well and load it with .357 Magnum 158 gr JHP or JSP loads. And with that 2.5” barrel, you will be lucky to push even factory magnum loads much over 1100 FPS. Smith K frame .357’s are beautiful, but a bit on the delicate side. If you want it to last, either consider taking up handloading and put together some mild .357’s, or just shoot .38’s.The FPS looks like it's way too hot of a load.
That's actually the ammo I had in mind, the American Eagle as far as JSP goes, not FMJ.