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Old 12-30-2012, 15:34   #17
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Join Date: Sep 2010
Location: PRK (Kalifornia)
Posts: 428
That's long! I didn't realize it was a shouldered bullet. It makes it longer, but also allows for a lot of length flexibility with your platform. It wouldn't work in a .357 magazine, though.

As far as the load recipe goes.....
I think I would start a little lower than 8.9 gr. While you are seating longer, the base will be similar to that of a FP or RN bullet of .357 compatible design, perhaps even deeper.

I would recommend no more than the stock RSA, or even lighter (15#). The G21 does well with the stock spring, but the slide is significantly lighter than the G20. If you have live-fire feed issues, try a G21 slide or a 15# spring.
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