Thanks for your inputs. I went to the range today and tried some more RL-15 and H4350 loads. 76grs of H4350 seems to be the best- in this rifle anyway. 2475fps. and about an inch group. I'll take that.This rifle is rsther light for a 375- less than 9lbs. scoped. So, I don't expect in to be a tack driver. But it certainly is a nice weight to carry.