R Ridge Runner Well-Known Member Joined Dec 13, 2002 Messages 991 Location Baker wv Feb 28, 2008 #1 whats the optimal twist for a 20 tac shooting 40 gr bullets? Hart only offers a 9 and a 12. thanx RR
adam32 Well-Known Member Joined Nov 14, 2007 Messages 2,096 Location Kookifornia Feb 28, 2008 #2 RR, Check out this article, it says 1/12 for up to 40gr. Twenty Caliber Cartridge Guide
C Catfish Well-Known Member Joined Jan 6, 2007 Messages 167 Location Ohio Feb 29, 2008 #3 Another good place to check is the Berger bullet page to see what they recomand for thiers.
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