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Old November 14, 2012, 02:33 PM   #9
Brian Pfleuger
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Join Date: June 25, 2008
Location: Central, Southern NY, USA
Posts: 18,791
I assume we're talking .308Win here?

If so, that load is likely too low. QuickLoad thinks it only about 68% fill on default capacity, which is usually low, so the actual % would be lower yet.

QuickLoad thinks that load generates 19kpsi and a muzzle velocity of just 841fps. The bullet is actually slowing down past about 9" in the barrel.

13.0gr should get you around 1,100fps, 12.0 would be around 1,000.
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