Still had an unfired round left in my muzzleloader from last December deer season. Shot it yesterday into a cardboard box that was packed tight with layered dry newspaper @80 yds. Found the bullet 6" in, everything behind it was a big ripped hole and in front of the bullet it left a ripped crease another 3" ahead of it.

It looks like a wood splitting wedge.

Sorry, meant to post this in the muzzleloader section!!