I had a Colt 1860 back in college, but a friend blew it up when he forgot to grease the chambers. One hell of a bang...
He pulled the trigger once, and one chamber fired. On his second pull the remaining 5 chambers fired. One ball went through the barrel, one blew itself into the loading plunger and embedded itself there (blowing the lever and lever hook off) and the other 3 just went "harmlessly" somewhere else. Blew the revolver right out of his hand. Fortunately, beyond the gun and some pride, nothing got damaged.
Following that, I switched back to flintlock single-shots. I like them better because they've got more power, better accuracy, and shoot quicker at the range (I can load and shoot 10 shots with a single shot pistol in the time it takes to load and fire six shots out of a revolver). Of course, if I had a bunch of bad guys after me, the revolver would probably be a better choice.
This is a .54 caliber flintlock pistol that is actually consuming a 70 gr charge of 2F powder (based on not finding any unburned granules on a white bed sheet spread out in front of me). I built it to match my rifle, so I could use the same powder, patch, and ball for both (makes things a lot easier in the field).
It's got a great lock on it, with nice, quick ignition and a smooth trigger-
This is the same shot at 1/4 speed, just because I think it's cool, lol-
Still hoping to get a deer with it... I had an opportunity last year, but let my 11yr old have it instead