Hank, have you taken critters with the old army and what kind of performance are you getting out of it? Before I started building my own I thought about having them build one for me now I was thinking of getting one and doing my own conversion on it.
I have taken several whitetails with it.
I get about 1250 Fps with 250 gr bullet and 50 gr Triple 7 fff. Mount Baldy was making bullets, but as I understand he no longer does. It takes special bullets as the bore is .488 to match .50 cal muzzle loader balls. Of course you could do one with a .500 or .510 bore. if you don't plan on also shooting balls.
I have found that if the bullets have lube on the side, that is not just in the grooves, recoil will cause the bullets to move forward since they are not crimped. I alway wipe the sides of my bullet as dry as I can get them and use a wonder wad behind the bullet for some extra lub.
