Well,two things. A little goes a long way. That can be a problem because it is easy to double charge fast powders because they barely fill the bottom of the case.

I shoot everything in my .357 from target load .38s to full bore magnum, all in .357 brass. You are right however in that you need a magnum powder to get the most out of a .357 but Titegroup can be useful, too. It wouldn't hurt to load up a few rounds while you are at it to test it out.

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