back in the early 60/s in rural western washington state i was at a gun range shooting my little s and w chiefs special. a guy showed up with a large bore civil war type muzzleloader. it was not a real gun range but a open spot in the woods every one shot at. he had large slugs for the rifle but they were drilled in the front to accept a 22 long rifle case. he pulled the lead out of the case and filled the rest of the case with 4 f black powder. he push that into the nose of his bullet. a bomb was made. he shot a few at a couple of old fence posts and when they hit they blew the fence post in half. neat to see. he shot at thick boards with the same results. blew a big hole in them. any one else ever see any one do this same thing? several years later i was on a bus of construction workers and two were talking about muzzleloader. i got interested and my first buy was a dixie penn rifle kit. the barrel was the worst one made ive ever seen. got me started though. about the expolding bullets, is anyone still doing that?