rpollard0, I didn't take the time to read all the arguing back & forth but to your original question:
I use, & prefer over Berry's, Rainier's 335gr plated bullets for the moderate loads I use at the indoor range. Rainier rates them to 1500fps & in my 500ES snubby that's not a concern. They're fine for "fun time" loads. Definitely go with sometime stronger for serious loads.
Since my loads are "reduced loads" I avoid the crimping issues/concerns mentioned by deep seating the bullet to the ogive & then taper crimping onto it. I've not had any problems with the bullets jumping crimp doing it this way & I've done it this way with several different brands of plated bullets using four or five different moderate speed powders.
You might want to back off that 31gr/2400 & start with 29grs & work up if using the deep seating I mentioned.
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Here's a thread a started some time ago:
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Range Fodder for the 500 S&W : ACME, HSM & RAINIER bullets
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