Gunpowder Analysis 7mm PRC

wabash503

Lil-Rokslider
Joined
Apr 9, 2024
Messages
157
Location
Manhattan, KS
RS Nation,

Need to borrow some brain power from you guys. I've purchased a 7 PRC and I'm researching load development...yes I've already read through the threads here and elsewhere. What I've done is take a look at the recommended powders for 160 gr bullets from a few different major manufacturers, and then took a look a published velocity and charge weight spreads (see table below).

Is it a good assumption that lower velocity spreads per grain of powder should produce lower ES and SDs? Thanks for your help!

WabashScreenshot 2025-01-10 at 9.04.21 PM.png
 
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