I did extensive accuracy testing for my home built 22" WC AR10 hunting rounds.
This is where I landed.
123gr SST - 43gr H4350 - 2724FPS @ 36F - 2.710 COAL - CCI BR primers - Hornady Match Brass
Loads are very rifle specific. Your rifle may like something different. There may be something better for this one, but this gives very accurate results and I'm not willing to put forth more effort into finding something better.
I hit one of those 4" hexagon shooting balls, sitting on top of a stick at 300 yards with a cold bore first shot. That is a good deal further than I'm likely to ever take a shot at a deer in the woods.
