Few things;
Yes it is pound for pound, but prized pits have been destroyed by Tosas, Kangals and in the rare case other mastiff breeds. I’ve seen the videos, and the pit simply can’t get over the size advantage of a determined Tosa, Kangal etc.
Most end up with so much damage in the early stages that their famed stamina and strength can’t be utilised properly and the owners call the fight off. The pit bull also does not have a lock jaw, it just holds it bite for a long time. It’s also been scientifically proven that a pit’s bite is less stronger than even normal breeds e.g. Rottweiler.
Here is an in-depth article on what I have written;
A pit bull will bite with around 300 pounds of pressure, which is a little less than your average dog bite.
According to a study from National Geographic, a dog will bite around 320 pounds of pressure. For the sake of comparison, the human bite will come in around 120 pounds and the great white shark will bite with around 600 pounds pressure.
The bite of a German Shepherd dog or the Rottweiler is stronger. These are the strongest dogs
It does not have a special built-in locking mechanism. But the pit bull will hold its bite for a very long time, and you cannot open its jaws. It’s simply because this dog breed is trained to do so.
https://animalhow.com/how-strong-pitbull-muscle-bite/
Here are the actual scientific studies done in bite force;
Dr. Brady Barr of National Geographic, for a TV special called
Dangerous Encounters: Bite Force, measured bite forces of several different creatures using a more direct measure. Basically he placed a force measuring device on a bite protection sleeve (or on a pole for larger more dangerous beasts) and provoked the animals to bite it. Because of the way that these measures are taken, they actually reflect the bite force closer to the front of the jaw, so they might not measure the maximum force possible. The strength of the bite will also depend upon just how provoked and angry the dog was during the measurement.
In any event, for the three dogs measured (an American Pit Bull, a German Shepherd and a Rottweiler) the average bite strength was 269 pounds of pressure, with Dr. Brady Barr of National Geographic, for a TV special called Dangerous Encounters: Bite Force, measured bite forces of several different creatures using a more direct measure. Basically he placed a force measuring device on a bite protection sleeve (or on a pole for larger more dangerous beasts) and provoked the animals to bite it. Because of the way that these measures are taken, they actually reflect the bite force closer to the front of the jaw, so they might not measure the maximum force possible. The strength of the bite will also depend upon just how provoked and angry the dog was during the measurement. In any event, for the three dogs measured (an American Pit Bull, a German Shepherd and a Rottweiler) the average bite strength was 269 pounds of pressure, with the Rottweiler topping the group with 328 pounds of bite pressure. Compare these to the bite strength of lions and white sharks which are both around 600 pounds, or the bone crushing hyena at around 1000 pounds, or more shocking, the Nile alligator which comes in at just under 2500 pounds.the Rottweiler topping the group with 328 pounds of bite pressure. Compare these to the bite strength of lions and white sharks which are both around 600 pounds, or the bone crushing hyena at around 1000 pounds, or more shocking, the Nile alligator which comes in at just under 2500 pounds.
In more recent research (published in 2009 in the Journal of Anatomy), Dr. Ellis and her team were able to show that the size of the animal and the shape of its jaw predicted bite strength. The larger the dog and the dog's head, and the wider the jaw, the higher the bite force turned out to be. The dog breed with the largest head and widest mouth is the Mastiff, so it is perhaps not surprising that it has been recently measured as having a bite strength of 552 pounds-just shy of the bite force that the lion has. This force exceeds that of all breeds measured to date.
www.psychologytoday.com/gb/blog/canine-corner/201005/dog-bite-force-myths-misinterpretations-and-realities%3famp
