Speer Reloading Manual # 12 recommends 3.8 to 4.1 grains of 231. I use 3.9 grains with my hard cast RNL bullets. Its extremely accurate and clean in all my 9mm Lugers and functions perfectly.
Charlie
Last edited by Ice; 03-26-2010 at 05:13 PM.
Reason: wrote wrong powder name. should be 231
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