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Thread: Mosin Scope Question LER

  1. #1
    Join Date
    Oct 17, 2009
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    Default Mosin Scope Question LER

    I have a Mosin Nagant 91/30. I have had a good time shooting it, and I would like to mount a scope. My goals are to use it for hunting if I can get it accurate enough. My question is whether or not long eye relief scopes are good for hunting or am I better off drilling my receiver for a regular scope/bent bolt conversion. I am sure the regular scope mount would be better, but this cheap rifle is getting up there with all of this work. I have read bad things about the drill/tap ati bolt, and would probably use the boltman bent bolt if needed. I have been looking at the S&K mount, and the Darrell's scout mount, and both seem like they would hold well, but I am not sure if the long eye relief will be much better than iron sights. Any help would be appreciated.

    Thanks, Corey

  2. #2
    Join Date
    Oct 08, 2006
    Northern Illinois
    Thanked 28 Times in 26 Posts


    Corey, if you find the right LER scope, it should work fine. I have a relative that owns the same rifle, which he has sporterized, and the LER scope(sorry, offhand can't recall the brand) works fine. Here is a link to a site that has scope mounts designed for your rifle.

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  3. #3
    Join Date
    Oct 05, 2009
    Santa Rosa, CA
    Thanked 68 Times in 59 Posts

    Default I wouldn't

    I have a few blown tries at the standard drill and tap mount. I saw a gunsmith that was running a 69 dollar special on doing the work. The bolt handle is OK, I enlarged the screw and used a hex bolt instead of phillips, and it is pretty damn solid. But getting those holes aligned proved to be beyond my ability. I used a jig, and my drill press and still it came out all wrong on 2 different guns. I even refilled the hole with JBWeld and tried to redo it but it failed. What i found was that the mount didn't sit squarely on the receiver. Then when I tightened it down it was cockeyed. If I did it again I think I would buy a mouser98 and I know those get done with some success. I looked at the scout version (LER) and thought it would be OK out to 100-150 yards. But I was trying to make a 300 yard gun. I have read stories of those who successfully converted their Mosins and I would love to own one. but by the time it is done, 200+ dollars later, I think a new Marlin XL7 for 100 dollars more is a better bet. I love those Mosins but they do have age issues. The crowns usually need a re-cut, the finish is never great, and I have just put so much work into mine that I would advise against setting your self up for heartbreak. Shoot it with irons at the range or in the brush, and then get a new rifle free floating barrel, factory installed mounts, wide variety of ammo and a guarantee from the manufacturer.
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  4. #4
    Join Date
    Aug 07, 2002
    N California
    Thanked 3 Times in 3 Posts


    Have you shot a pistol with a scope on it. That's what a scout setup on your Mosin will be like. A rifle with that setup is complicated to use as is the scoped pistol. The issue with many Mosins is that the receivers are not uniformly formed where a drill and tap scope mount would be mounted thus causing some, even if drilled dead center, to mount badly. It's one of the main reasons why the original PU sniper scope mounts were mounted to the side of the receiver with the rings sweeping over the top. They mounted more uniformly in that fashion. Many Mosins are crudely machined and finished in the upper receiver area making traditional scope mounts tricky and sometimes impossible to get right.

    Still get the shakes when the Honkers turn into the wind and drop their feet or when a little forked horn buck walks up my trail. I take kids hunting every opportunity I get. "What?? Haven't heard an Elk bugle in the woods??" Man, you haven't lived yet!!

  5. #5
    Join Date
    Feb 09, 2002
    San Diego
    Thanked 19 Times in 16 Posts


    Ditto what hunthog said...

    Find a maker of the "pseudo Mosin Sniper" scope mount kits (that require drilling and tapping the siade of the receiver). Then you can use an AK style side mount (lever type) that has a weaver rail on it. These side mounts are shimmed to account for the often non-alligned recievers.

    The attached photo shows a Nagant with a PSO-1 scope (that has the mount as integral to the scope), but it gives you the general idea...

    BTW, this particular Finn Nagant does shoot well (1/2 MOA)...

    "Despite our ever-changing, ever-indignant world with its growing ignorance of and indifference to the ways of the wild, I remain a predator, pitying those who revel in artificiality and synthetic success while regarding me and my kind as relics of a time and place no longer valued or understood. I stalk a real world of dark wood and tall grass stirred by a restless wind blowing across sunlit water and beneath star-strewn sky. And on those occasions when I choose to kill,....I do so by choice, quickly, and with the learned efficiency of a skilled hunter." -- M. R. James

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