Step 7: Add Scope

Add the scope to the rings and bolt it down.

Your done. Go sight it in. This is my 3rd attempt to mount a sight to this gun. I ran 13 rounds through the gun after this and it was still rock solid.

Good hunting!
<p>Why not use one of the systems designed for mounting scout scopes to the mosin that keep the rear leaf sight intact, while securing the scope. i.e Brass Stacker mount, or UTG TriRail mount. This allows the modification to be reversed in case you ever want to sell the rifle to someone who dislikes your mods.;</p>
<p>RC. I find the rear leaf sight mounts rarely stay solid. If you are lucky enough to find a solid shooting Mosin in a pile of surplus you will want a very solid mount. I have a UTG on my run of the mill surplus (10in groups @200yrds) but use the 3/8 dovetail for one with that shoots above expectations(2in groups with match ammo @200yrds). I agree that typically it's good to not modify a firearm beyond the point to turn back but it is a Mosin Nagant and most people will just get their own surplus from a dealer. Half the full of a Mosin is refinishing it and making it your own. </p>
I foud a way mount a scout scope with no damage to the gun. Just dont lose the sight. You need two of these. http://i00.i.aliimg.com/wsphoto/v0/688696782/VO-1pair-3-8-11mm-Dovetail-to-7-8-21mm-Weaver-Rail-Adapter-Mount-Matte-fit.jpg,digh. http://i00.i.aliimg.com/wsphoto/v0/688696782/VO-1pair-3-8-11mm-Dovetail-to-7-8-21mm-Weaver-Rail-Adapter-Mount-Matte-fit.jpg<br><br>BSA sella them, but they are available for cheap on eBay,and amazon. They appear to be identical the the ones from BSA<br><br>They end being a snig fit. That's good. Drift them on with a wooden dowel. Then tighten the screws using loctite. It on there good. I have had a couple 1000 round s with one of those.
<p>I wanted to do this but I liked the scout scope configuration I got from big 5 that is made by AIM Sports Mosin Nagant combo pack. Works pretty good to about 200 yards but past that I haven't had the opportunity to shoot at a target yet. The P.U. scopes I have seen online and in stores are to expensive for a surplus rifle like the Mosin. plus they really have no magnification like the scope I have on it now. Good job on the instructable. I might end up doing this to mine in the near future.</p>
Don't take this as abusive or negative but Please stop molesting the Mosin. She is a wonderful rifle just the way she is. If you need a scope buy a PU sniper version of the M91/30 but please oh please stop sporterizing them. PLEASE : ) but I digress she is yours and you are free to dress her as you see fit. Good Day <br>
I agree. Modifying a Mosin for sporting is like sharpening an antique sword for trailblazing.
The two dimples on the top of the rail I put there for the set screws to grab onto. The two holes on the side of the rail are original to the rifle. The two pins that hold the original rear sight slide into them.
what's the two holes for? did you make them? I don't have them in mine and im trying to mount a scope to my Mosin but im not using the rail because its too far away for my scope and I don't really want to buy a new scope...lol
Id just tap the receiver so I wouldnt have to deal with long eye-relief scopes.<br>Neat 'ible though, Locktite is very useful!
the trouble with tapping the reciever in a 91/30 is that the bolt action is at a square angle. you'd have to either replace the whole bolt, or have a smith bend it down to something like 60* which is absolutely horrible to work with.
ATI actually has a great kit that includes a bolt handle and rear sight mount with very good instructions. Anyone with simple machine skills will be totally comfortable with the installation. It also holds a full scope quite well.
One problem I find with this mod is that you are using rimfire scope mounts on a centerfire gun. What I would recommend using a universal weaver mount and drill and tap four 6-48 screw holes and remove all possibility of scope shift, <br>most rimfire mounts lack any real holding power even on the intended gun the use of set screws is a old gunsmith kink. PS I think it is great you did not use the worthless rear sight mounts.
The scope setup of the platform in general doesn't give many options short of diy gunsmithing, which at the time I wasn't comfortable with. Since this instructable, we've put about 300 rounds through the gun and it still hits where expected. Nothing has loosened up, but I would agree that rimfire rings aren't the best thing for it. So long as they hold... <br> <br>Ironically, I've recently purchased an M44 (carbine version of a 91/30) and fit it with the ATI rear sight mount, subsequently putting about 20 rounds through it. The accuracy was astounding (using a Russian VOMZ scope) and I prefer shooting through it rather than the 91/30. The sighting for the scope mounted over the bolt feels more sure of itself. I'm looking forward to fall deer season with this gun.
Also, your mosin could use a good refinishing with something other than 100yr old varnish!
that's not varnish... thats cosmoline... <br>
Update on the scope mod. I've since put about 100 rounds through the rifle, and the scope is still holding zero.