I have two 10ML ll muzzleloaders. One is an earlier version which doesn't have the AccuTrigger, and the rifling does not go to the end of the barrel, it lacks 3/4" or so. It makes dropping a sabot and bullet in for loading quite easy. The second one, being a bit newer, has the AccuTrigger, and the rifling goes to the end of the barrel. Does anyone know why the rifling changed, and has anyone taken the time to test one over the other for accuracy? I have not, because I left one un-scoped in case I went to a state where scopes and smokeless powder isn't allowed. Also, I plan to sell one to make room in the safe for a new flintlock rifle.