Re: Real world accuracy of the Mosin
Bearrr...
Part of the motivation was just hobby-related (I'm trying to learn more about gunsmithing, and this type of minor work is a good way to get my feet wet), and I was intrigued as to what type of accuracy might be wrung out of one of these old actions. They were snipers' weapons seventy years ago...so what results could we get with an "update" with new knowledge and technology?
We all know that a solid bedding job- both receiver and pillars- can literally knock inches off a rifle's groups. When I looked at the Mosin's recoil cross-bolt, I knew that there had to be way too much movement. As part of the bedding job, the recoil block on the bottom of the receiver is set into a solid block of the bedding epoxy (I also did this on another Mosin that I restored to original condition- by cutting off the ends of the cross-bolt as "dummies").
Pillars were cut/drilled from 1/2" round steel stock. The Timney trigger design causes an issue with the pillars- the rear pillar needs to be notched substantially to accomodate the trigger. The Timney was added after the pillars were installed- so it was a real pain notching while it was in the rifle. I had to notch it as shown in the second picture
The bent bolt, I made myself... nothing fancy, grade 8 bolt, re-welded the original knob back on with my handy wire-feed welder. A bit of grinding with the dremel to clean it up. Since it was going to be painted (not blued) it was pretty straightforward.
I had never seen the Weaver side mount used on a Mosin. It worked fine- but does result in a VERY low mount. This required my bent bolt to be absolutely as low as possible to clear the rear bell of the Vortex. If I do another, I will probably use the Rock Solid mount. Very good design, just kind of bulky in appearance.
The Boyd's stock required extensive fitting and inletting (so much for 95% done). All of the inletting was off-center. The Timney also requires a ton of inletting as well- so you need to be handy with a Dremel...
Not in the pic, but last thing was to add a Limbsaver Grind-to-Fit pad. I can shoot 100 rounds now with no discomfort whatsoever.
The only thing I really want to do now is chop the barrel to make the rifle more manageable. I know they say it shouldn't affect accuracy...but with it shooting so damn good as it is, I'm reluctant to screw with it!