Iuse a 20 grain bullet and 110 grain load of BH209 probably in the 2000 fps range out the barrel. I will shoot 1-2 inch 100 yards all day w/you. IAll the gents I read om here and these are pros as well as mm not one of the guys shoots 150 mag/max charge. If anything, they will tell you to shoot smaller or slowed up loads for accuracy.