Well I have a remington model 721 that is in good shape. Bought at an auction, and has been a real good deer rifle for my first and only big game rifle. I recently got all the stuff to reload and got some 140 accubonds from reading on here. I had trouble finding powder, but after a month of consintantly going in and checking, I was able to get 1lb of RL22 and 1lb of H4831. I have Federal large rifle primers, and CCI large rifle magnum primers, and Remington large rifle primers. Since I don't have a press yet, I used a family members stuff for the time being, and loaded 50 rounds with H4831 at 57.1 to 57.4. I saw that almost everywhere I looked 57.9 to 58.5 is what people load with the same stuff. Having never shot this load, I went a little lower, but wonder if I should have gone even lower. From what I understand I should be fine as the barrel is not new. Used once shot winchester and Federal/estate brass for reloading. I've never had a problem shoting factory ammo from 130 to 150gr in various brands. Didn't really have quick access to reload and test, so did I underload enough to try one of the 57.1 first?