I have read about the S&W revolver lock failures but I have never seen it happen personally and I don't have any S&W revolver with a lock.

This morning I got a call from a friend who said the lock on his model 60 may have failed. He said he was shooting the revolver at the local range when the on the 5th round he could not pull the trigger. He said the action was "locked" or "jammed" up and he could not pull the trigger. This occured after firing about 30 rounds. He didn't have the key to unlock the revolver and the range didn't have one either so he had to secure the revolver (there was one live round left) and take it home. At home he said he tried to "unlock" the action but he said the key would not turn. It's as if the whole lock and action is jammed. He's going to take the revolver to a local gunsmith to see if it can be "unlocked" next week.

Anybody here ever seen this type of lock failure? Is this what commonly happens when the revolver lock malfunctions?

Anybody else seen a lock failure on a S&W revolver?