I had been working on this gun off and on for about a week. It is a 12.17x44R, or close to that. First I had to ream the chamber out, was not rusty, just too tight. I made a hone, started out with 300 grit emory cloth, then went to 400, 600 , 800 and finally 1000 grit. I had the action stripped and when I dropped a round in, it went Kerthunk, all the way in. Next I had to address the extractor. It was nowhere near fitted, for the cartridge rim and had to put a slight warp in it. It was case hardened, and as I tapped on the extractor with brass hammer, it would ring. Finally got it where it needed to be, then I cut the face, to fit around the cartridge, and rebated the rim enough. Took 2 hours, with machinist files and installing it 6 times to check for fit and function. Took it out and shot it, worked sweet, and shot to point of aim. Next issue to address was the forearm. It had been fitted by drilling a pin hole thru the tenon, about halfway thru the offside of the forearm. The previous owner had tried to drive it thru with a punch and had broken it off on the entry side. I simply tugged on the forearm until it bent the remains of the pin in the offside enough to remove the forearm. The hole in the entry side of where the pin went it, was twice as big as it needed to be. I took a drill bit that would clean up the hole and ran it thru both side of the forearm. Then I took some deer antler tips, ground them down till they fit, cut them off and tapped them in with some epoxy on them. When dry I sanded them down flush with the wood. I then drilled a hole thru the forearm where the bottom of the tenon rested in the forearm, and drilled and tapped a 8/40 hole, counter drilled the hole in the wood for a thick washer, put a screw in and screwed her up snug. Then I took it off, and rust blued the barrel today. Oiled it down and put it all together The forearm also got a couple of coats of clear coat. It is blonde, and so is the stock with its original finish, with some flame grain in it. He plans on refinishing the wood soon. It was a lot of work, but the bore is pristine on this thing, and it shoots a 3" group all day at 100yds, with the military sights being dead on. I will get TBG to post some pics of it, later. Just thought I would share, another Roller rides again.