Had it back out again today. At 50 yards, with 90 grains of 2F, it was almost stacking three PRB's on top of each other. Previous load was 70 grains of 3F. Finally ran it out to 100, shooting a 8" bull, shooting 2 shot groups to get it sighted in, it was putting the 2 shots within 1.5". Got it on at 100 and spent about an hour popping milk jugs.
On another note, I just started shooting Grafs powder in both 2 and 3F in a 32, 50 and 54. I think it burns quite a bit cleaner than Goex. Has anyone else noticed this?
I wish Green Mountain still made these barrels so I could get one in 54 with the 1-70 twist.