Wide Open Spaces has collected an impressive amount of photos of various catastrophic detonations in firearms.  While most of them would likely have left the shooter stunned, there are a few that I would hazard caused some damage to both the gun and the shooter.

Interestingly, it shows that no one type or model of gun is immune to badly loaded ammunition. Wide Open Spaces has photos of Ruger Revolvers, Glocks, Remington bolt-actions, and 1911s.

Hit the link for the full photo gallery. It is not for the faint of gun heart.