The title of my thread is a little misleading, I think. I'm not concerned about the actual gap between the end of the barrel and the cylinder, but rather that gap between the bushing on the axle, and the frame. I thought about putting the cylinder in the lathe, and facing off the bushing enough to make a perfect face and then adding metal to the bushing with low temp silver bearing solder.... then facing it off again until the cylinder rotates freely but the gap is removed. The hand pushes the cylinder forward, but still indexes well, but in half cock, the cylinder spins without much resistance from the hand.