2 .357s and cast Bullets

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2 .357s and cast Bullets

Postby JackBohm » Tue Dec 31, 2013 1:33 pm

I have 2 .357s in my collection, a Ruger GP100 3" Barrel, and a S&W Model 65-3 4" Barrel. I have worked a bit with with 2 Lyman Molds, the 358429 170 grain Keith SWC and the 358477 150grain SWC. Good results with Both. I am looking for a couple of molds. One that I could use for IDPA. Good for knocking over steel plates. #2 would be well suited for piercing metal or glass with a hard alloy.

Any ideas or suggestions?

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Re: 2 .357s and cast Bullets

Postby mtngun » Wed Jan 01, 2014 10:35 am

I can only vouch for bullets that I have personally tested, and my applications and priorities are different than yours.

Generally, the heavier (180-190 grain) cast bullets are more accurate, but you'll suffer more recoil, use more lead, and lose a little velocity.

I use a 160 grainer at 1300+ fps in my revolver, because a 160 kicks quite enough for my taste and will do anything I need a 357 revolver to do.

My Marlin prefers heavier bullets, with a gas check.

From left to right: 160 grain 75% meplat revolver bullet, 180 grain 80% meplat Marlin bullet, 190 grain 75% meplat Marlin bullet.

I haven't done any scientific metal piercing experiments, but in my younger days I enjoyed shooting at abandoned vehicles and such :lol: , typically cars from the 50's and 60's when automotive sheet metal was thicker than it is today. At the time I was shooting a 44 magnum, and they usually would not penetrate, while a 30-30 or a 22-250 would easily penetrate. My takeaway was that unless you are shooting a steel core bullet or some such thing, that metal penetration was largely a function of velocity.

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