Interesting. I saw things happen to guns during the flurry at the former UP SxS Classic, where you got 76 targets in 2 1/2 minutes (although getting off 60+ shots if using just one gun--you could use 2 or even 3, and loaders--was not all that common). But I never saw, nor remember hearing, about ribs detaching. This was a summer shoot, and barrels got hot enough that some guys shot with welding gloves on their forward hand.