Just an update to this thread. I took my new Mosin Nagant (M/N) out to the range and discovered that my eyesight had really deteriorated over the last 50 years. After some research and a visit to Cabela’s where I found an M/N fitted with a “scout” scope I decided to emulate what they’d done. A good and a bad idea, bad because they’d completely removed the rear sight, I ended up removing mine in pieces learning along the way that the sight had been pinned, set-screwed and soldered into place, a good idea because it was exactly what I wanted. I went ahead and purchased the same sight I’d found on the gun in Cabela’s, an NcStar 2.5X30E scope with mounting rings. The only trouble was the ring clamps were set far too wide for the 0.5” required for the dovetail slots left behind from the original sights. The only mounts I found that fit were for an air-rifle, but other than a cheap stamped steel locking piece, they fit perfectly. I figured for $6.99 I’d give them a try, after 6 shots the scope nearly fell off the gun, back to the drawing board. I then compared the mounts that came with the scope too the air-rifle mounts and realized that I could switch out stamped steel locking pieces with the heavy duty locking pieces from the original mount. Two different manufactures, yet the pieces were interchangeable, who’d have thunk it! I did have to replace the knurled locking bolts with longer allen bolts but that was no problem.
Here’s a picture of the finished scope mount setup that held tight today after 14 rounds.
About the target photo. Bingo marks where I finally got the rifle sighted in at 50 yards, the shots numbered 1, 2, 3 and 4 were taken after I sighted it in. There are a few shots on the paper taken at 100 yards but I’m not certain which ones (I’m new at this, next time I’ll bring a marker with me).
Steve
Thanks for sharing. 
