The worst recoil and blast from a revolver came one day at the outdoor range.
I had my 629 with full factory magnum loads and a 'nice guy' 4 benches down had a Ruger Super Blackhawk. I noticed it was a bit loud. ????
He walked over and offered me the ''opportunity' to try it out. He then loaded his extra 'special' hand loaded rounds, handed the gun to me and said that it might kick a little more than usual.
Well, the first round almost flipped the gun out of my hands, I then changed my grip and touched off another, then I had enough, so did the poor gun.
The cylinder refused to rotate, humm.........
The remaining rounds had all jumped their crimps locking the gun up and after we were able to remove the cylinder from the frame, I noticed all the spent rounds had their primers exceedingly flattened. We had to beat the spent casings out with a dowel.
Basically, I was holding on to a grenade.
He then mentioned that he had exceeded the recommended max load and just wanted to try it out, thanks a lot.
This was about 15 years, early 90's, before I acquired my 500 and I swear it was it was the worst blast and recoil I had ever encountered up till now. I really can't compare the two because of the time that had past, but it was really bad (he just laughed).
How that gun held together is a true mystery.