In my range rifle, 18” Criterion, 1/8 twist, .223 Wylde, 18” barrel I like the 68gr Hornady Match HPBT with H4895 consistently around 5/8-3/4 MOA. With some bulk 62gr FMJBT I can just get MOA consistently in the same rifle with H4895 as well. Federal 55gr SPFB I’m also around 1-1.5 MOA consistently with Varget. I full length size with a body die then neck size with a Lee collet die, necks turned, flash holes deburred, primer pockets cleaned,cases all kept within +-.001” in length, using LC brass.