Lets consider that most western people who hunt nowdays do it for sport, rather than because they need to kill animals to feed their families.The problem with non rifled guns is the lack of accuracy at longer distances. The spin of the bullet makes it less vunerable to changing direction due to air friction, even though due to this spinning the bullet will tend to move in a semicircular, rather than a straight path.However, for reasonable distances a shotgun can do just as good a job. It does however mean that you have to get close to your target, either by chassing it or by outsmarting it.As an advantage for the shotgun think that you can fire quite a heavy sabbot/slug, but naturally, at lower speeds. I get more pleasure chassing and shooting an animal than I do going to the butcher and buying meat.So, those who hunt for sport will still enjoy their sport.Those who just go out once a year so that they can kill adeer from half a mile away and then go home with their trophy will be in trouble. ITS NOT HOW WELL YOU SHOOT, ITS HOW MUCH NOISE YOUR GUN MAKES.