I finally got a chance to fire my model 53 Remington Jet. To my dismay after the first shot went off, I could NOT rotate the cylinder. I used PPU ammunition and noticed the round backed up in the cylinder after being fired. A new round fits perfectly in the countersunk cylinder, but the fired cartridge will not. I cannot rotate the cylinder with the spent cartridge in it. I haven't tried any other brand as of yet. I do have a box of Remington Jet.
Any ideas why this is happening?
No bulges in the casing. Cylinder is perfectly clean. Frame behind cylinder is also clean.