River Rat - any chance you've gotten caught up in the "more is better" thing? More powder in this case? 120grains of777 is the equivalent of around 130-140 of other alternatives. That's way more than "needed" at 150 and may be detrimental to accuracy. What ML are you currently shooting? What bullets have you tried? Any chance you'd be willing to go back and start at 80 grains and shoot enough rounds of a given bullet to find the optimal charge for just one of those 4 muzzleloaders at 100 yds? Then, you'd be able to sell me one of the others so you don't feel so bad about having parted with all that cash.