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Old September 22, 2012, 09:56 PM   #19
Brian Pfleuger
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Join Date: June 25, 2008
Location: Central, Southern NY, USA
Posts: 17,473
I checked in QuickLoad to see what it predicts the pressure change might be on .007 with a 135gr bullet in .40SW.

With a max charge of Power Pistol, going from 1.135 to 1.128 made a difference of about 900psi, about the same as 0.1gr powder.

Went from 34,486psi to 35,360psi
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