I've got an old M99R 250 Savage made in 1953 that has a fairly rough bore. When I got it, there was a bunch of corrosion in the bore even though it came out of Wyoming, it cleaned up farily well but copper fouls pretty bad. After seeing some posts here and elsewhere about paper patching polishing the bore I decided to give it a try. I cast a lot of NOE 260283, 89 grain plain based bullets for my old 25-20 and though it would be a decent one to try. I calculated the circumference, pi x Dia., and doubled it for a 2 wrap jacket. Cut a few trapezoids at 60 degrees and 1.61 length out of printer paper(supposed to be a little more abrasive than many of the recommended papers). Had to cut a few more when I got them too wet and they tore while rolling. Left to dry overnight, then cut some off the tails, wiped on some paste wax and ran them through the push through sizer. I dug out some of the older brass and ran it through my expander/flairing die. Charged with a starting load of 4320 at 31 grains for a 87 grain jacketed bullet, I left them fairly long so they would engrave on chambering. Stepped outside the shop and fired the first one at my pistol gong at about 50 yards. Bounced that thing pretty good. Case and primer looked fine, so I grabbed the other 7 and leaned up against the walnut tree to see if I was getting any kind of grouping. POI was about 3" low with the scope set for my normal 87 Speer Hot Core at over 3K, but it looked like I got a decent pattern. I pushed a couple patches through it and ran the borescope down it. I thought I could see some smoothing starting, probably wishful thinking, but I've got 50 more of them standing up in a pistol cartridge box to dry. We'll see how it goes.