I haven't shot any groups lately, playing around with a new Encore, and have the scope off and just using the iron sights. But as I remember when I had the scope on it and was shooting off a rest at paper it was doing a minute and just under. I was using 55 grain fmj, WW small rifle and AA2200 data powder. My upper is American Spirit Arms A2 and not Bushmaster as the lower is.