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Power Pistol has been excellent in my testing using a 180 grain plated bullet. 10 shots from a load 10% under maximum. The pistol was a Glock 20 with a .40 S&W conversion barrel.
956 fps Average
Extreme Spread = 59 fps
Standard Deviation = 14 fps
That's good enough for me. I have no plans to increase the powder charge.
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