Smlekid, You have not said whether these pigs are wild boar or feral hogs. The wild boar and some or its hybrid relatives are much more challenging game than the feral hog. Armour, weight, large tusks, speed, intellegence, agility and aggression are the qualities that make the boar dangerous game. If you are shooting feral pigs then perhaps buckshot will work. Better luck on your next hunt! David