Brass life with that load is 3 shots with both hornady and lapua brass before it will not effectively hold a primer in place or you get the smoke ring around the primer on the fourth, regardless of the load. 1 out of 5 will blow a primer completely on the fourth round if that load is used. The only real pressure sign you see in my gun in head expansion. Winchester brass will outright not hold up with that load while the case capacity was within .3 grains of water. It would only take 50.5 grains behind a Berger and 50 with the hornady. While my accuracy and ES/SD was good, I do not recommend using that load. I would stick with 51 as an absolute maximum and if I got good accuracy before that I would roll with it. RL17 will easily get you over 3000 fps. I use 52 grains of RL17 with the 130 and get fair case life and 3200 fps with a 26 inch barrel, 3140 with a 23.5 inch barrel.