I have shot thousands of round balls, they are still my choice for all hunting. My underhammer started life as a .45,( Numrich Arms , "The Offhand" was the model 32" barrel) I havetwo 35mm film containers in one of my shooting boxs full of RB,s recoverd from deer from the 45 barrel, I shot it out with over 3000 balls and 20 yrs of use. In 1998 I rebarreled the gun to 58 ( 29 5/5 long )and have shot it threw two coffee cans of .562round balls. I know the ball has limits but I did take an antilope in WY. @ over 150 yrs. with a patched ball. in the .45 I loaded 70 grs. of either FF or Pyro RS and that cronographed @ 1970 FPS. in the 58 I shoot 80 of RS normaly and get a tad over 1400 FPS. I have not ever been able to recover a 58 RB.

Ken In Central NY