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Old December 30, 2012, 06:19 AM   #16
Bart B.
Senior Member
 
Join Date: February 15, 2009
Posts: 5,016
5whiskey, shoot at least 20 shots per test group with each sizing method else the results you get won't have any statistical significance. If you shoot several groups with the same ammo and they're not all the same size (within 10%), you've not shot enough rounds per group for them to be meaningful.
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