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I've got a Smith 645, which has a steel frame. I know I can use that to shoot Remington +P+ .45ACP ammo, but what about my dad's Sig P220 .45? It has an aluminum frame, I believe, and I don't know whether it could handle the stiffer rounds. It's got a good reputation for long term shooting, but have never tried a +P+.
Thanks!
Thanks!