This is a cutaway from a Smith & Wesson .357 Magnum that got a bullet jammed. Then some brainiac decided to fire the seven remaining rounds in the cylinder to unjam it. That did not work. Admittedly, I don't know much about guns except for the sounds they make in movies, but even I know that doesn't sound like a good idea. If I was firing a gun and a bullet jammed in the barrel, I would do the RESPONSIBLE thing: drop the gun and finish off my enemy with a sword.
Thanks to Brion, who agrees gun ownership clearly isn't for everyone.