Mosin Nagant chambering issues

Discussion in 'General Rifle Discussion' started by Doug1627, Jan 12, 2011.

  1. Doug1627

    Doug1627 New Member

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    Hello All,

    I bought my 1st Mosin Nagant about a week ago at the local gun show. My ammo arrived yesterday so I wanted to check to make sure the firearm functions properly. Unfortunatly I was unable to fire the rifle due to some rounds chambering and others not. In other words the bolt closes fine on some rounds and will not close for others. I ordered a 440 round tin of Russian Surplus ammo made in 1977. Headstamp 188. I assume this is an ammo issue and not the head space but wanted a second opinion before firing.


    My second problem. All rounds chamber except the last one. When I get to the fifth round in the magazine the bullet nose dives when I push the bolt forward. Anyone know why?

    I do not have the rifle with me but it is a Russian production and if mind serves me correctly it was manufactured in 1944. I think, not sure, the rifle is the 91/30. Its the long one if that helps.

    Please help. I want to shoot this weekend instead of waiting for an exchange.

    Thanks so much!
     
    Last edited: Jan 12, 2011
  2. Maverick

    Maverick New Member

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    Model ?......91/30?...........91/59?
     

  3. jpattersonnh

    jpattersonnh Active Member

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    So the rounds do chamber and you can close the bolt, but the last round in the mag well did not feed correctly? If this is the case, there is a lever on the bottom of the mag well(floor plate). Open the floorplate and clean the well and spring.
     
  4. Maverick

    Maverick New Member

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    Thats what I was thinking too..... weak/worn spring maybe.
     
  5. Doug1627

    Doug1627 New Member

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    I think, not sure though, it is the 91/30.
     
  6. Doug1627

    Doug1627 New Member

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    I can close the bolt most of the time. I think some of this ammo is the problem for the bolt only closing sometimes.

    Feeding issue. Yes, the firearm feeds the first 4 rounds fine but the fifth round nose dives. I cleaned the magazine assembly when I received the firearm but will clean again. It looks very clean right now though.
     
  7. Doug1627

    Doug1627 New Member

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    My brother also has a mosin. Guess I will stop by his house and take his mag assembly with me to see if that fixes this issue. Thanks for input. I am a newcomer to surplus rifles.
     
  8. Maverick

    Maverick New Member

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    It wouldn't still have cosmoline all over it and in it?............. does it?
     
  9. jpattersonnh

    jpattersonnh Active Member

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    Is the spring in correctly?? Follower??
    You should also check the ejector as it doubles as an interrupter in the mag well.
     
  10. Doug1627

    Doug1627 New Member

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    Cleaned everything except the stock with breakclean and re oiled. She feels and looks clean to me. I will clean again anyway.
     
  11. Doug1627

    Doug1627 New Member

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    Yes, I believe the spring is in correctly. I can post pics when I get home.


    The interrupter feels strong and moves freely so I have elimanted that as the problem but will clean it again incase I am wrong.
     
  12. c3shooter

    c3shooter Administrator Staff Member

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    Ref: chambering/ not chambering- did you strip down the bolt and clean it? Is the extractor free to move? Assuming that ammo is ammo, and there are no gross dimensional differences between cartridges, the extractor must move to ride over the rim. Also be sure to clean the chamber GOOD. I pull the bolt, use a section of cleaning rod, a worn 20 gauge brush, drill, and solvent- check rod into drill, attach brush, dip in solvent, insert in chamber, spin while moving in and out for about 30 seconds, followed by clean patch.
     
  13. jpattersonnh

    jpattersonnh Active Member

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    Where are you located?? You might be close to a member that can help.
     
  14. Doug1627

    Doug1627 New Member

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    Just spoke with the seller of this firearm. He will be mailing me new magazine internals. Hope this fixes the issue and gets here fast. I will update when I receive the items.
     
  15. Doug1627

    Doug1627 New Member

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    I stripped the bolt down but did not focus on the extractor. Will do this tonight. I have not cleaned with a drill. Will do this as well. Thanks for input.
     
  16. Doug1627

    Doug1627 New Member

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    I am in O'Fallon, MO. Just outside of St. Louis, MO. I sure would appreciate help if it is available.
     
  17. orangello

    orangello New Member

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    I have not done this, but many people advocate carefully warming the firearm to get out excess cosmoline. I'd be really careful with that idea.
     
  18. willfully armed

    willfully armed New Member

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    Use grease on the bolt lugs, not oil.

    I've shot alot of mosins that you had to slap the bolt open. And closed.
     
  19. jpattersonnh

    jpattersonnh Active Member

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    On a similar idea, I soak metal parts in mineral spirits. Even when you think it is clean the mineral spirits always look like Bourbon, but allas, you can't drink it. :( Soviet cosmoline is more like bees wax then a grease. As far as a lube, I use CLP, FP10... Why? because it is friggin' cold here in the winter, grease gets hard. Likewise in the summer it flies everywhere. Since I use corrosive ammo and will strip it anyway, it makes no sense to use grease. No advantage.
     
  20. m72law

    m72law New Member

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    sounds like your mag spring is weak.i had the same thing happing with one of the mosins i had purchased recently,i also had a FR8 .308 rifle do the same thing on the last round...after cleaning everything in the rifle and it still does the last round nose dive thingie...wait & replace with new or better box mag parts,you could also check for any burs on the top of the follower...good luck
     
    Last edited: Jan 12, 2011