Until a squib shoves the bullet into the forcing cone. You can't open the cylinder or rotate it until the bullet is tapped back into the cylinder. Preferably with a small wood dowel and not while you are trying to defend yourself in a fire fight.
Revolver jam #2 happens when you load with taper crimped cartridges. The first round fired unseats all the rest. That happened to me when I purchased a box of 44 magnum reloads (at a gun show) that were taper crimped and intended for a Magnum Research Desert Eagle. I had 5 rounds of unseated cartridges. I stopped shooting that ammo and "disassembled" the 5 cartridges when I got home. Each was refilled with Win296 powder and reseated. I then took every cartridge from that batch and used a Lee Factory Precision Roll Crimp die to put a good, hard crimp on each round. They all fired flawlessly after that.
The lesson learned is that your self defense revolver needs to be kept squeaky clean and only use known good self defense ammo when that is the purpose for carrying it. My favorite is Federal HydraShok .357mag in 125 gr.
I had a friend at American Shooting Center in San Diego. He was the bodyguard for the Secretary of Defense for a while. He carried the S&W BodyGuard model. It was his favorite because of the ability to cock it and fire single action. The fully shrouded (enclosed hammer) model 640 doesn't have the pocket lint problem, but must always be fired DA.
I also had some .45, one of the heavier rounds, 230 or bigger, I'd have to look at the notes, that didn't want to chamber fully. They measured correctly, diameter-wise. Anyway, I burned off that batch of bullets and haven't had the problem since.