Here's a cool video where they actually outfit a bite sleeve with sensors to measure the bite force applied by various breeds of dogs.
https://youtube.com/watch?v=R7jhrxy0HKs
You'll notice the Rottweiler tops out at just over 300pounds, higher than the Pittbull. Remember this figure the next time you hear some idiot saying a Pittbull can bite with 600-1800 pounds of force.
