Okay I've only put 150 rounds thru mine as the range day ended because CFO shut it down for an inspection. SK Standard + and Center X show promise. Shooting off a bipod and rear bag produced several groups 3/8 to 1/2", sorry no pics. Also tried CCI Standard Velocity and it patterned like a shotgun. Going to do some polishing of the trigger parts and try a different spring and see if I can get the pull a bit lower. Also tried loading single shot direct into the chamber and then full magazines, point of impact did not change shooting from full mags. Very happy with it so far, hope to get out again soon.