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Old February 5, 2013, 09:33 AM   #4
Unclenick
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Join Date: March 4, 2005
Location: Ohio
Posts: 10,346
If you use the same powders and peak pressures and COL's with the two bullets in QuickLOAD, the 175 grain bullet's velocity is 2-3%% lower in a standard 24" velocity test barrel, depending on the powder. That's not scientific, as I don't know they use the same powder or peak pressure in both rounds, but it gives you a vague idea of the likely difference.
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