I shoot the T/C Maxi-Ball (not the Maxi-Hunter)conical and 90 grns blackpowder or Pyrodex RS in my .50 cal New Englander.
At 50 yds it will cloverleaf the slug holes.
I've deer hunted with itfor 20 yrs and it's accounted for nearing a100 deer.
I love my New Englander!