Me and my dad have a ongoing argument I hunt with a Remington 700ML 50 cal and use powerbelts in it he has a custom made 54cal side hammer and shoots 70gr of Blackpowder and a patched roundball. Well he's shot 2 deer with it he killed one but had to track a LONG ways the other we lost. I say the roundball is not big enough to hunt deer with and am trying to convince him to either get a online or go back to his TC Hawkin useing buffalow bullets. He says that the roundball has been killing deer for 300 years and still will. My argument to that is yes it will kill a deer but a 22 will kill a grizzly but I wouldn't try it. So am I wrong here what do y'all think.