I have never shot a slug gun although I have fired slugs from a smoothbore and have put many many bullets downrange from a muzzleloader. Being from PA I have 4 or 5 flintlocks, a sidelock percussion and an inline. The difference between a smoothbore shotgun with slugs and a muzzleloader is like night and day. The muzzleloader will give you much more accuracy and distance. As I replied to your other post check your game laws before purchasing a muzzleloader to be sure you get one that is legal in your state and the states you may intend to hunt are worth checking too. The most difference between states I have found is not so much the type of rifle but the type of bullets allowed and the type of sights. Of course if your state does not allow a sabotted bullet then I would not be looking for an inline as these are designed for sabots.