Sabot...Don't sell that 1 in 48 short...The original Hawkens were 1 in 48 as well...Now they were deep cut, not button rifling, but I have set up quite a few T/Cs for guys...If you are just target shooting, 50-60 grs is plenty...Make sure to try different patching, that is more important than most realize....I just go to WalMart and buy red pillow ticking, it's about .018 and pretty tough...

My custom .54 does have 1 in 72, cut rifling...Sounds like these guys probably had customs...You won't win at Friendship with that gun, but she will shoot inside 1 1/2 - 2 inches at 50, if you get the right combo...