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Oh fun, no sights on my new Mosin.

Discussion in 'Shooting Gear and Storage' started by Koobuh, Mar 14, 2006.

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  1. Koobuh

    Koobuh Member

    Joined:
    Jun 15, 2005
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    A couple days ago my dad and I were looking for a new .22 at a local gunshop when something caught my eye.
    Long story short, we came home with a heavily sporterised Remington-made M91 mosin-nagant rifle.
    The stock was cut back (though modified nicely), a leather butt-pad of sorts added to increase length of pull, and an adjustable front sight was added.
    Whoever did the modification removed the original rear sight assembly entirely.
    The rear sight? A piece of sheet metal screwed into the back of the bolt with an aperture drilled into it. Yay for inaccuracy due to a wobbly rear sight. I can get the rifle on paper at 50 yards, amazingly enough, and it seems to have potential solely as a decent hunting/plinking rifle.
    I can replace the part of the bolt easily enough (have it on order now), but I will need to put something on the rifle to replace it.
    Most of the historical interest in this piece has long ago been stripped away; however I would like to avoid modifying the basic components of the weapon with drilling or other such heavy modifications, because the bolt, receiver and magazine well all match, and I might be able to cobble together the necessary parts (stock, correct rear sight assembly, front sight) for a proper restoration later on.

    The removal of the original rear sight assembly exposed the mounting base on the barrel, and it looks curiously like a rimfire rifle's receiver mount (sort of an inverted dovetail- a flat-topped isoscoles rectangle of metal angling up out of the barrel round for a few inches, just in front of the receiver/barrel mating point).

    This got me thinking about getting some rimfire scope rings and attaching a LER or pistol scope directly to the barrel.
    Now, mosins of course fire a heady cartridge on par with 30-06, and this rifle has been lightened enough that it kicks severely with the 180 grain hunting ammo I tried in it.
    Would the rimfire rings hold up to this abuse in your opinion?

    Another option I considered is modifying the same rings (cutting off the ring part, leaving only the attachment bases), and attaching an aftermarket peep sight to them before clamping the whole assembly on the rifle. The big problem with this is that the front sight will then be too low, and I'll have to find a replacement- which isn't as big a deal of course, just more frustration.

    What I really would have liked to find is an adjustable peep sight that could clamp directly to the barrel flat. The mass would be low enough that impulse energy shearing the attachment isn't a worry, and I wouldn't have to modify the front sight.
    Any ideas?
     
  2. BillinNH

    BillinNH Member

    Joined:
    Jan 4, 2006
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    Location:
    New Hampshire
    I'm not sure I fully understand what has been removed from the rear sight area. If just the sight assembly has been removed and the gun is unmodified underneath, you can get dropin mounts for a scope rail from B-Square or even a peep sight. Check makarov.com, they have some MN accessories, IIRC. I put a B-Square rail mount and a NcStar 2x Extended Eye Relief scope on my model 38 carbine and it works very well out to 100 yards, maybe farther. I haven't shot it beyond that range.

    Bill
     
  3. Koobuh

    Koobuh Member

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    Everything is gone. Sight leaf, spring, and they even took off the base. It is bare barrel where once a sight assembly was. All that remains is the flat section of barrel with little grooves on the sides to attach a sight base to.
    Normally this wouldn't be a problem; slap on a different sight assembly and you're done.
    However, the M91 sight base shares compatability with only a few other early Mosin rifles, all of which are uncommon. If I could find a sight base (difficult), it would be well out of my reasonable price range at this point for this rifle project.
    That's why I'm looking for a cost-effective, non-invasive, commercial solution.
    Heck, if someone can point out an adjustable peep-sight that fits onto a rimfire sight rail, I can MAKE it work. ;)
     
  4. BillinNH

    BillinNH Member

    Joined:
    Jan 4, 2006
    Messages:
    401
    Location:
    New Hampshire
    koobuh says:
    "Everything is gone. Sight leaf, spring, and they even took off the base. It is bare barrel where once a sight assembly was. All that remains is the flat section of barrel with little grooves on the sides to attach a sight base to."

    Wow, that's pretty bare.



    "That's why I'm looking for a cost-effective, non-invasive, commercial solution.
    Heck, if someone can point out an adjustable peep-sight that fits onto a rimfire sight rail, I can MAKE it work. "

    That sounds like a good approach. Try one of the Ruger 10/22 accessory sites. Let us know how you make out. Good luck with it.

    Bill
     
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