Mine shoots good with .452 250 grain Deep Curls with Harvestor Crush Rib sabots and also .40 cal 200 grain XTP with MMP blue .50/.40 sabots. Both with 70 - 80 grains of powder. I haven't had time to play around much to find a really sweet load yet, though. Both of the above loads shoot 1 - 2" groups at 65 yards, which is far as my dad (I set it up for him) will ever shoot....