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Old January 18, 2013, 12:14 AM   #2
Junior member
Join Date: January 24, 2010
Location: South West Riverside County California
Posts: 2,763
You are good to 20k psi not the "Ruger Only" loads and more than SAAMI spec of 14k psi. You are limited by a shorter cylinder to about 280 grain max bullets. A really good bullet/powder combo would be a 255 grain SWC with about 9.5 grains of Unique.
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