Well I'm glad there wasn't a drastic difference in my case...my 308 LaRue PredatOBR is not a fan of the Blackhills loaded 175 TMK. It likes GMM though. Groups were consistently around 2 moa (tmk). SD on the BH's from my magneto speed was around 12 fps.
Colt Armorer Course, 2004
Remington Factory LE Armorer School (870, 1187, and 700), 2008, 2013
Remington 870 LE Armorer course, 2017
Specialized Armament M16 / M4 / AR-15® Advanced Armorer Course, 2012, 2016
Glock Armorer Course, 2012, 2016
S&W M&P 15 Armorer Course, 2013, 2019
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