I know I know, we've heard the story too many times. Just thought this was a nice little interview with Sports Illustrated of all publications. Sounds like Bret had a mean uppercut.
http://www.si.com/extra-mustard/2014/11/19/bret-hart-opens-about-infamous-montreal-screwjob
“It was the most beautiful uppercut punch you could ever imagine,” said Hart. “I actually thought it would miss and go right up the side of his head, but I popped him right up like a cork was under his jaw and lifted him right off the hand. I broke my right hand just beneath the knuckle, and knocked Vince out cold.
http://www.si.com/extra-mustard/2014/11/19/bret-hart-opens-about-infamous-montreal-screwjob