You sound like a Smith and Wesson kind of gal.... or is it Ruger?
While revolvers are generally more "jam-free" than autoloaders (pistols), they can certainly jam up. I've had a couple of them do that while shooting. Both times it was some kind of trash under the ejector star, one was a couple of flakes of unburned powder, which locked up the cylinder. I actually had to sort of smack it on the side to get the cylinder to open, so I could troubleshoot the issue.
The "hand" can break, or wear down, ruining the timing, the cylinder stop latch can become disabled..... so, things CAN happen. They are simply less likely than problems with an autoloader. Single action revolvers ROCK, reliability-wise.
Autoloaders depend on several different mechanical functions/movements to cycle reliably, and not all auto's will feed anything but round nosed bullets. They can be adjusted/tweaked to amazing levels of reliability, however.
The aforementioned military 1911 45acp is a good example. Most of those were VERY reliable.... because they assembled them to have a lot of "slop" in the action.... much like the Kalashnikov (AK-47) rifle. They HAD to be, so that they could withstand the rigors (dirt, mud, water, etc...) that they were going to be subjected to. The downside to that is that, with all that slop in the action, accuracy is, well... less than spectacular. But it was good enough for combat.
Many of the military grade 1911's will shoot about 2-3" at 7-10 yards...good enough for combat. A modern 1911, built to tighter tolerances will put all the bullets into one hole at those distances. But, you get some dirt or mud in it, and it locks up.
