sheriff, thanks for the post, I'll check powercustom.net. I've looked at the bushings in Brownell's. Doing the machining wouldnt be a problem as long as I know how it should be done I havent seen one with the bushing installed in the cylinder to know how its supposed to be machined. The barrel doesnt need to be set back and the back of the cylinder doesnt need machining. The headspace is right when the cylinder is held to the rear and the barrel to cylinder gap is right. The cylinder just needs to be held back and take out the excess end shake and keep the cylinder away from the barrel because its basicly rubbing it now. Shims would do the job but would rather not mess with them every time the cylinder comes out.