Yes they are that powerful, and some other breeds are also very powerful. I have seen it with my own eyes. I have a family member that is big on hog hunting and I have gone hunting with them many times. He mostly uses Plots and catahoula cow dogs but he did use pits for awhile. The difference in the way each dog hunts and bays a hog is quite different. Plots and cow dogs will surround a bayed pig and the dogs will only come for the attack from behind. As soon as the hog spins around, the dog will let go and another dog will come in from behind and take a bite. Pits! There is no strategy with this breed, they all dive in head first no mater witch way the hog is looking. I have seen many a pit get ripped wide open by the tusk because they want to latch on and lock on and not let go. So you have been bit. Most dogs don't bit to there full potential. Even when your playing with a dog and they start biting harder then you would like and you correct the dog, there just play biting you. One of my pits found a turttle in the yard one day and he crushed the shell with his powerful jaws with no problem. You may think you have been bitten before but chances are the dog didn't bite you as hard as they are capable of.