Hello I'm new to this forum. Not to block powder rifles. I bought this gun when I was 19 to hunt with my father. He and my brother both had 54s so I bought one as well. Back then we shot the TC maxi balls. These are or but there is something better now. I have some power belt lead 348,405gr. Shot the Normandy plains 425gr they shot not so well. or not as good as the power belt or maxi balls.Then I picked up a pack of Barnes xpander 275gr sabots. This bullet shot the best as far as a group. But man are they hard to load.. the gun has a 1/48 twist. I'm using 100 gr of alliance black mz. And CCI no.11 caps. Does anyone have any others to try?? Don't want to do the round ball thing. Thanks for reading and the imput.