Timing Problem with SAA

[Gallowglass]

I've got a Cimarron SAA that I've had problems with. It wouldn't go to half cock. I disassembled the gun and found a broken bolt, so I replaced it with a new one ordered directly from Cimarron. I installed it and now have half cock back, but something else has cropped up. I have to cock it slowly. If I do, everything works fine and the cylinder locks up properly. If I cock it too fast, the chamber won't line up with the bore. Also, when it is completely uncocked, the cylinder can be rotated backwards. All I can figure is the bolt notches in the cylinder are getting worn down. Anybody have any thoughts?

[Gallowglass]

Sorry. I've posted this in the wrong forum. Mod, please delete.