I have been using this in my 22-250 Ruger MK II
52 gr Sierra HPBT / or 53 gr HP Sierra ( both shoot at 1/2" MOA )
Varget 35 grains
CCI 200 primer
I have backed off this load from 36 to 35 gr. cuz of the heat and humidity effected the accuracy. In cooler temps it was well under 1/2" as it warmed up it started to string the groups still under 1" but opened them up. When I backed off 1 gr it brought it back in line.