RE: blown scope, lead sled to blame?
UC - I would have to say that his mounts were secure. Apparently the held in place well enough to wreck his scope. The Burris Signature scope isn't a piece of crap scope.
Your question makes me laugh though. Years ago Bushnell came out with a handgun scope with what they called 'post mounts'. If you don't recall these, they were simplytapered studsthat were screwed into the mounting holes on the revolver and the scope had matching holes with a locking screw. I installed this set up on my S&W 29 (.44 mag). It didn't even last one cylinder full. about the 4th or 5th shot, the scope went sailing over my head landing about 5 feet behind me. Peeved me off at the time - but funny now.