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Old June 15, 2011, 03:31 PM   #2
Loader9
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Join Date: July 29, 2008
Posts: 949
Plated bullets are generally good on data thru 1200'ps with jacketed data. I looked at the Rainier manual and they show a max load at 6.3 grs 231powder, 230 gr RN COL@1.275. Speed was still below 900'ps. They show a max pressure at 19,900PSI with 21,000 considered a max average which is also the SAAMI pressure limit. I checked in the current Speer for jacketed data and it comes back a lot more than your load using 231. The call is yours to make.

Where did you find the 5.1 max data?
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