Ninety-two rounds of .223, 19.0 and 19.5 grains of IMR-4198 under Hornady 68-grain HPBT Match bullets, CCI #41 primers, COL 2.257.

I've always stuck with 55-grain bullets because I also shoot them in my Rem 788. These will be for my AR only. I don't think the 788's 1-12 twist would work well enough for the longer Hornadys.