Rossi (which I believe is owned by Taurus) .357 revolver. The cylinder was crooked enough to get hung up every now and again .. could easily see it wobble when you open the cylinder and give it a good spin, unfortunately I didn't do that when I bought it in fear of looking like a dork. That won't happen again...
Also have a S&W 15/22 that's a jammomatic .. consider myself lucky to get through a mag without a failure, 2 failures is probably the average. Happens with all magazines.
Those are the only guns I've ever had problems with. I would like to sort out the 15/22 one day, because it's actually a really cool little plinker when it has a good day.
Liberalism is the final stage of evolution that precedes extinction.