Primetime, welcome to muzzleloading, it's a real blast. Everybody gave you some good advice here. Muzzleloaders take a little more time and preparation for the average hunter. For hunters that really take their hunting serious, any weapon takes alot of preparation and practice. Take the time to shoot your ml's several times. Clean the barrel every couple of shots while practicing. Remember, the barrel will be clean when you take the gun hunting. I actually run a patch through my barrell after ever shot when practicing. Don't forget to clean your ml's after shooting. They will rust up rapidly. Bore butter and 3-in-one oil are good for the barrels and the breech plugs. If you have removable breech plugs be sure and put bore butter, grease, or oil on the threads to keep them from corroding and locking up in the gun.
Good luck to you.