Just goes to show your lack of imagination, jOe. The brass shim was used in the Nitro Special, that was written about in DGJ, for decades, with regular use with hot loads. The new owner knew about it when he bought the gun and continued right along. Normal typing paper, with a coating of oil, doesn't compress, at least not much. As long as you know it is there, and don't take the gun apart, it can't really go anywhere.
A good repair can be done in the future, after our hero has discoved other facts about the gun, like, for instance, if he can hit anything with it, or, if it needs other big dollar repairs. In the meantime, he can use it with a shim to discover other warts, or. lack thereof. At least it doesn't look like he will be sleeving it, eh jOe?
Best,
Ted
