I am now up to 4 riffles that have shot a 1" 5 shot group at 100 meters.
The best my Mosin Nagants have shot is:
1) 1942 91/30 that has done 1.4" 3 shot groups
2) 1944 VKT M39, 1.2" 5 shot group at 100m
Both had scope mounts and a 40X scope, but neither were glass bedded.
Now I have figured out how to glass bed the 91/30 to do better next time at the range:
1) Drill out the two action screw holes in the wood with a 23/64" drill.
2) Tap the holes in the stock with 7/16" tap.
3) Relieve the stock until the action and bottom metal are free to move above and below their optimum position.
4) Assemble the action and bottom metal on the stock and screw in the action screws until the action and bottom metal are correctly positioned. Remove the screws while counting the number of turns.
5) Reassemble the action and bottom metal without the stock and install the screws with the counted number of turns.
6) Measure the distance between the bottom metal and action next to both screws. Write down those measurements, Mine were .785" in front and 1.545" in the rear.
7) Cut lengths of 3/8" outside diameter brass or steel tubing per measurements and true the ends with a lathe, then removing the inner and outer burrs.
8) Score the outside of the tubing ala Wagner
http://www272.pair.com/stevewag/turk/turkbed1.html
9) Place the screws in their first holes and on the other side put a layer of duck tape ala Wagner
http://www272.pair.com/stevewag/turk/turkbed2.html
10) Coat the outside of the tubes with Devcon Steel Putty from Brownell's
http://www.brownells.com/aspx/NS/store/ProductDetail.aspx?p=5808
11) Assemble the rifle with action screws at 2 inch pounds torque and push up or down on the action and bottom metal until it is in the right position.
12) Let the glass set.
13) Put the rifle in the freezer, even if it is not stuck, so that it separates nicely when cold.
14) Put glass under the recoil lug and tang per this picture:
The tape under the sear is part of my new low tek 91/30 trigger job.
I had a problem with the expoxy sticking to the crude machining of the barrel and reciever. I turned the first inch of the barrel in the lathe and sanded off the roughness. I did not get any expoxy on the rough sides of the receiver this time.
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