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Old July 21, 2010, 10:06 AM   #11
Brian Pfleuger
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Join Date: June 25, 2008
Location: Austin, CO
Posts: 19,578
I ran that load through QuickLoad using (I think) the Speer 125gr FMJ. It says 705fps, 138 ft/lb, with a 5" barrel. Essentially a 22LR. It's probably a little optimistic since QuickLoad doesn't account for the pressure loss at the cylinder gap. You might want to start at 3.0
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