That's what I did last time for the 168. Tightened it up this time around on a hunch that it would be in the same general area of charge weights. One thing that strikes me different this time around: I was seeing more dramatic differences last time around with the 168gr and the .2 increments. These 175s appear to be playing better with the OCW approach. It's a 1:12 twist, so at the moment that seems to make some sense to me.
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