McGowen Precision AR-15 6-ARC build
#21
I should make a couple other observations. True bearing surfaces for 2 Sierra mk’s 6mm and 6.5mm would differ as you say (probably) but you really need to look at the 2 surfaces, after all the rear BT lengths could differ... but in general I would agree. That correlation weakens more, however, when you take 2 from different mfrs. but still can be a factor. 2d, I don’t look for max mv’s from either, I’m looking for mv’s within the same node range for 20” barrel... that’s why I picked out 2700. Trashy’s 20 in the 6arc shoots much faster than even mine and maxes definitely above 2700, but that’s all I need for my purposes. So that’s why I picked out the 2700 figure... max mv’s isn’t my goal.
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RE: McGowen Precision AR-15 6-ARC build - by danm - 07-01-2020, 06:23 PM
RE: McGowen Precision AR-15 6-ARC build - by danm - 07-29-2020, 05:26 PM
RE: McGowen Precision AR-15 6-ARC build - by grayfox - 08-31-2020, 07:45 PM

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