Used a little RL33 with 175 Partitions in my old Mashburn. 570 would probably work darned good too with 175's and heavier. I got an easy 3100 with Retumbo and 33 out of the old rifle.
Great news on the 33 with the 175's beretz, a man can go a good long way out at 3100 fps with a great b.c. hunting bullet.
