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  1. #1
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    Mississippi
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    Default mosin barrel replacement

    I am looking for a bull barrel for a mosin. Does anybody even make barrels that will fit? How much money and how difficult would it be to have a barrel converted to fit a mosin. I want to retain the original caliber. I have a barreled receiver with a horrible bore I want to do something with.

  2. #2
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    Nov 2007
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    bozeman, montana
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    Default MN Barrels

    I have also thought of a MN bull barrel, like the Finn TKIV 85. When I see how well some of my MN shoot, I can only imagine with a precision heavy barrel.

    I will tell you, the outfits I found charge ~$300 for a heavy barrel, and not installed.... and perhaps not chambered. A chamber reamer from Brownells is $100, about as much as a good gunsmith would charge to install.

    Which brings me to my next "experiment" I have got several excellent barrels from Buymilsurp.com. He has a pile of MN take offs, some excellent+, check it out. I have a thrashed sewerpipe barrel and plan to remove it and put on a newer quality surplus barrel. I have done M-1 Carbine barrels, but they index super easy. Lets see with Mr. MN.

    I will say if you go down the heavy barrel road, there is a Richard's Microfit stock company, gorgeous laminated or regular sweet black walnut, 97% inletted for a MN. They will put the channel you want on several types of serious target stocks. Obviously, free floating with a bedded receiver. So I work on the dream to.

    I hope this has been of some use. Ciao

  3. #3
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    Dec 1969
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    King George, Va
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    Default

    I am interested in your discoveries. I also have a barreled receiver that could stand a barrel.
    Jim

    United States Navy (1986 - 2001)
    • USS Charles F. Adams DDG-2
    • USS Ticonderoga CG-47
    • USS McFaul DDG-74


    "If there must be trouble, let it be in my day, that my child may have peace." - Thomas Paine

    Fair Winds and Following Seas

  4. #4
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    Jul 2008
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    7

    Default Barrel replacements...

    And I just posted another question on this board without looking this one over. Say, you wouldn't happen to know the material the receiver is made of do you (13% this, 4 % that, etc...) Just want an Idea of how strong it can be based on materials used in manufacture, thanks. Also looking into the TKIV 85 design idea, awesome piece of history there too.

  5. #5
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    Default

    I couldn't find any info on MN receiver material. Supposedly its fairly soft and unlikely to blow up under heavy loads - expands instead.

    But the MN has some problems that make me keep it in original military configuration and would stop me from spending much money on it:
    The bolt handle is too far forward for fast, easy manipulation.
    The split bridge makes it hard to install a conventional scope and side mounts are less efficient.
    The safety is poor.
    I believe there's only 1 trigger mod available.
    The external magazine makes the rifle clumsy to carry on a hunt.
    Gas handling/protection provisions are mediocre.
    The WWII Soviet rifles are poorly finished.
    I swear by Jupiter Optimus Maximus .... in the army of the consul Lucius Quinctius Cincinnatus and for 10 miles around it I will not steal anything worth more than a sestertius in any one day.

  6. #6
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    Sep 2007
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    363

    Default

    i put a dp28 barrel on a m/n looks cool with the flash hider on it. a cal. i would like to do to the m/n would be the 33 winchester if you turn the rim down to fit the bolt head it fits the mag and feeds real good. a few of the other barrel swaps i have done is sks in carcanos,a mg13 in a vz24,30-30 in a 1911 smit./rubin,03A3 barrel in 308 on a mas 36,a few rem.700 barrels on turks,45 acp in a 1891 arg.,45acp in #1mk3 & #4mk1 the 1st. 3 i did in 45acp were 16-1/2"x 3/4" that were bushed and head spaced like the sav. 110 but the last one i just did was real cool a 32" long x 1-1/8 barrel on a #1mk3 former indian 410 shotgun with a wever to1 top mount a guy at the range wants to swap me a remington mod.722 in 300 sav. for it so its gone o ya i also put a sav. mod. 59 .410 barrel of a m/n

  7. #7
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    Jul 2008
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    Pittsburgh, PA
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    Default

    Quote Originally Posted by yesca View Post
    i put a dp28 barrel on a m/n looks cool with the flash hider on it. a cal. i would like to do to the m/n would be the 33 winchester if you turn the rim down to fit the bolt head it fits the mag and feeds real good. a few of the other barrel swaps i have done is sks in carcanos,a mg13 in a vz24,30-30 in a 1911 smit./rubin,03A3 barrel in 308 on a mas 36,a few rem.700 barrels on turks,45 acp in a 1891 arg.,45acp in #1mk3 & #4mk1 the 1st. 3 i did in 45acp were 16-1/2"x 3/4" that were bushed and head spaced like the sav. 110 but the last one i just did was real cool a 32" long x 1-1/8 barrel on a #1mk3 former indian 410 shotgun with a wever to1 top mount a guy at the range wants to swap me a remington mod.722 in 300 sav. for it so its gone o ya i also put a sav. mod. 59 .410 barrel of a m/n
    your post is worthless without pics:D J/K
    "And I'm searchin' for a rainbow
    And if the wind only shows me where to go
    You'll be waitin' at the end, and I'll know
    I'll say "To Hell with that pot of gold"
    Marshall Tucker band

  8. #8
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    Sep 2007
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    363

    Default

    Quote Originally Posted by dannyboy762 View Post
    your post is worthless without pics:D J/K
    1st. off i don't own a camera 2nd. my p/c is only 200 mhz 3rd. i am on dial up i only come here to take a brake :D oh and i don't have the last one i just did [32" #1mk.3 in 45 acp]some one at the range today swapped me a remington mod. 722 in 300 sav. for it so its gone. i think i got screwed think its all b.s. ask don bell about it? were do you think all the m.g. barrels came from? oh well its time to go to school and make some more :eek:thank you tax payers:

  9. #9
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    Dec 1969
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    Monmouth, Kennebec County, Maine
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    Thumbs up That 7.62 X 39mm Carcano...

    I've been contemplating just such a hybrid myself, but need more info as to how to make barrel shank & receiver threads compatible and convert the external magazine to an AK mag well that will accept AK mags. It would probably help if I could weld and had a machine shop at my disposal, I suppose...



    Since it's a bolt action, there wouldn't be any issues with the BATFE like if it was putting an AK mag well into an SKS, would there be?

    Would this technically be "modifying" an existing firearm or "manufactuting" a distinctly new one out of old parts?

  10. #10
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    Dec 1969
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    SW Finland
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    Default

    Some comments; Finn military armorers think the M-N receiver is too soft to carry a free floating bull barrel. The solution was the TAK85 bedding block system (my English skills fails me, I don't know what you call this thingie) was introduced. This means that both receiver and barrel are free floating.

    Quote Originally Posted by jjk308 View Post
    The bolt handle is too far forward for fast, easy manipulation.
    Practice! Or modify bolt handle to your taste.
    Quote Originally Posted by jjk308 View Post
    The split bridge makes it hard to install a conventional scope and side mounts are less efficient.
    True, to a point. A repro PE mount with 1" rings is one solution, offset rings another. The TAK85 attaches the scope to the bedding block. And of course there's always the ATI trampoline system...
    Quote Originally Posted by jjk308 View Post
    The safety is poor.
    True, needs attention. Rings help somewhat. I got a replacement trigger group with side safety for my hunting 9.3x53R
    Quote Originally Posted by jjk308 View Post
    I believe there's only 1 trigger mod available.
    In addition to DIY solutions and the Huber, there are at least 3 others available from time to time; one Finnish and one German target trigger group, both around 50 €, the original (and later copies of)TAK85 trigger groups sold to civilians in the 1980'ies, ca 100 €. All these sans safety. Lastly there's the Finnish civilian trigger assembly with side safety, ca 100 -150 € when occasionally found at gunshows.
    Quote Originally Posted by jjk308 View Post
    The external magazine makes the rifle clumsy to carry on a hunt.
    You're kidding, right?
    Quote Originally Posted by jjk308 View Post
    Gas handling/protection provisions are mediocre.
    True, drilling a gas went hole on each side, a la Remington and Tikka is a good idea to include in your project.
    Quote Originally Posted by jjk308 View Post
    The WWII Soviet rifles are poorly finished.
    True. That's why the itch to 'improve' surfaces so easily :D

  11. #11
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    Default

    Hey Bokmal. Don't get me wrong. I love MNs. But I love carrying an efficient, comfortable rifle on a hunt more. After a couple expensive experiences in rifle building I've given up on sporterizing any more mausers, and they're way easier than Mosins.
    I swear by Jupiter Optimus Maximus .... in the army of the consul Lucius Quinctius Cincinnatus and for 10 miles around it I will not steal anything worth more than a sestertius in any one day.

  12. #12
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    Dec 1969
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    SW Finland
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    Default

    Absolutely no offence taken or implied I just wanted to add to the discussion from my limited knowledge about tinkering with Mosins.

    I agree with your reasoning, you'll never get your money back on DIY rifle customization. BUT you'll have fun and learn a lot. Mausers are indeed easier than Mosins, but up here a complete Mauser action costs 150-200 euros, while Mosins actions are about 25 euros... It's just way cheaper to play with the latter.

  13. #13
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    Dec 1969
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    4,021

    Default

    Why re-barrel when they are cheaper to just buy another with a good bore?
    Want a Mosin with a high quality "new", "unissued", "target" beefy barrel? It's called a Finn M39! They already did all of the hard stuff plus added a superb set of iron sights. Stock isn't the least bit shabby as well! Late model '67-'73 were built and hand tuned as "sniper/target training rifles".
    I was so impressed with the 1970, which for all purposes appeared to be 'like new', I just had to order another and got a '67.
    Other than the trigger, which was not 'hand tuned to perfection' like the '70, it too was hardly if at all used.

    Wanting something to tinker with that eats 7.62x54R, that will stand up to a constant heavy diet of same on the range, there are few choices in decent bolts out there, other than that Czech rifle nobody imports.

    The M39 will accept a hex mount PE scope mount
    http://accumounts.com/ repro w/ six screws, which is about as solid a mounting as you can get.

    Since it is a Mosin receiver, it will fit rather nicely in a Boyd's walnut stock.
    Unfortunately, a nice custom wood stock is hard to find right now and even the Boyd's monte carlo is in scarce supply but
    http://www.dmfirearms.com/index.php?...u5bujg6oitr021
    has a couple left. I just got the new one from them.
    I used one for the M44 project and am quite in love with it.
    Being solid walnut, you can drill the butt for
    http://www.precisionreloading.com/recoilsuppressors.htm
    a mercury filled recoil suppression tube that has proven quite effective and a LimbSaver butt pad (grind to fit) that all but eliminates recoil.
    Sand and shape it anyway you want (but do include a Devcon pillar post epoxy bedding job and free float the barrel)
    http://forums.gunboards.com/showthre...d=1#post282054

    I already added a http://www.huberconcepts.com/Mosin-N...eplacement.htm
    With some fine tuning and polishing, the trigger is about as fine and smooth as you can get and fully adjustable. Already have it set as a precise sniper trigger.

    There is even enough barrel ahead of the front sight to thread for a quality screw on muzzle brake. Still looking for the one I want but it will probably end up with one eventually.

    While the eventual cost of the total package is going to mount up, there is still nothing else out there that will compare for the total price that lets you start off with as solid a foundation as the M39.

    If you want to dick around with a custom that shoots 7.62X54R, I think the M39 is the way to go!
    I expect to be fully satisfied with the eventual outcome of this one as it gets better by the day with each step in the process.

  14. #14
    Join Date
    Jul 2008
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    7

    Default

    BOKMAL and DB2044,

    You are both right and I thank you for your insight on this topic. I would like to add to the "soup" of opinions if I may.

    1. MN's are plentiful
    2. MN's are cheap
    3. Ammo for them is cheap (for now anyway)
    4. Finally, just as the Mauser's before, advances will be made in products that will enhance these guns. I'm sure that someday soon we will see replacement (new made) barrels available from Midway or Brownell's. If there is a base line product out there that can help sell new parts, it will come. I will wait for now, but the TKIV 85 is damn sexxy and too expensive for my wallet!

    ----

    Does anyone know how to reproduce the Finnish modification Jam Free on the frigger guard/mag? Me and a ball peen hammer just won't work (LOL).

  15. #15
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    Dec 1969
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    Monmouth, Kennebec County, Maine
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    Default Another Idea...

    Has anyone converted a M/N to .45-70 or .444 Marlin?

    The forward part of the magazine would have to be widened, but the rim diameters are pretty close, aren'tn they?

    I would imagine that only about 3 .45-70s would fit in such a modified magazine. Do you think that 4 might fit?

    If you reamed and re-rifled the barrel as opposed to changing it, how long would one be able to run a 91/30 barrel out while maintaining adequate wall thickness at the muzzle in .45 or .44?

    An M-38 length carbine in either of those cartridges would make a heck of a brush gun, I would think.

  16. #16
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    Dec 1969
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    SW Finland
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    Default

    I've seen some Mosin converted to 45-70. It's a popular so called 'dog handlers calibre' (Moose are frequently hunted with tracking dogs in the large wildernesses of the north here in Finland) in a Marlin or Mosin.

    The conversion to 45-70 seems simple enough, change barrels and widen the front of the magazine a little bit more than for the 9.3x53R Finnish.

    As for reaming out and rethreding the barrel, well, I've never seen it done but I imagine that I can't be much cheaper than simply buying a replacement barrel.

    "Born with the gift of laughter and a sense that the world is mad"

  17. #17
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    Dec 1969
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    alvin texas
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    Default

    lothar wather will thread & long chamber its .311 bore barrels for the mosin. you will have to set the shoulder back to set the headspace then cut the extractor slot. it's a special order piece & goes for around $300. pac nor also sells .311 bore barrels.
    i'm collecting parts for a 6.5x55 swede chambered mosin, using my bannerman as a guide to make the rimless cartridge work in a mosin. the 6.5x55 fits the mosin mag like it was made for it.
    i'm using a pre-threaded lr mauser barrel as a starting point because the minor diameter of its threads is slightly over the major diameter of the mosins barrel threads & i can get the threaded & short chambered mauser barrel for about the same price a a normal barrel blank then just cut new threads.

  18. #18
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    Sep 2008
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    now residing in Alabama
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    Default

    I am in the process of building 300wsm using a MN. The bolt face had to be welded and turned to accomodate the smaller case head. The reciever has been polished and tempered and in the process of fitting a 26" bbl in .308. Will keep you posted on the results.

  19. #19
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    Dec 1969
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    alvin texas
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    Default

    the 300wsm needs no modifications to the bolt head, extractor or ejector. the case heads are close enough in diameter to work as is. the only one i know of that was converted suffered severe lug setback after being remote fired around 50 times.

  20. #20
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    Quote Originally Posted by dirtyjim View Post
    the 300wsm needs no modifications to the bolt head, extractor or ejector. the case heads are close enough in diameter to work as is. the only one i know of that was converted suffered severe lug setback after being remote fired around 50 times.
    Quite a difference in operating pressures between the two isnt there:eek:
    If you find yourself in a fair fight, your tactics suck!

    LETS GO PENS !!!!!!!!!!!!!

  21. #21
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    Quote Originally Posted by Uncle Jaque View Post


    Since it's a bolt action, there wouldn't be any issues with the BATFE like if it was putting an AK mag well into an SKS, would there be?

    Would this technically be "modifying" an existing firearm or "manufactuting" a distinctly new one out of old parts?
    Expect to be hassled if you lived in Kalifornia! Northridge International sells the rare 20 round detatchable 98K Mauser box magazines on the EXPORT market only...

  22. #22
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    Dec 1969
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    Muskego, WI
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    Default

    Quote Originally Posted by yesca View Post
    i put a dp28 barrel on a m/n looks cool with the flash hider on it. a cal. i would like to do to the m/n would be the 33 winchester if you turn the rim down to fit the bolt head it fits the mag and feeds real good. a few of the other barrel swaps i have done is sks in carcanos,a mg13 in a vz24,30-30 in a 1911 smit./rubin,03A3 barrel in 308 on a mas 36,a few rem.700 barrels on turks,45 acp in a 1891 arg.,45acp in #1mk3 & #4mk1 the 1st. 3 i did in 45acp were 16-1/2"x 3/4" that were bushed and head spaced like the sav. 110 but the last one i just did was real cool a 32" long x 1-1/8 barrel on a #1mk3 former indian 410 shotgun with a wever to1 top mount a guy at the range wants to swap me a remington mod.722 in 300 sav. for it so its gone o ya i also put a sav. mod. 59 .410 barrel of a m/n
    Where did you get the DP-28 barrel, and how much??? That would be awesome to put on a M38 or M44... How easy was it too?
    Ahhh... I love the smell of cordite in the morning!
    -looking for WWII ammo made in Milwaukee or Eau Claire arsenals

  23. #23
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    alvin texas
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    Default

    here a couple of pics of the mosin project i've got going on. the bolt handle has been moved to the rear of the bolt & the gap in the rear bridge has been filled. i have a finned 7mm barrel from madsen light machine gun thats going to be threaded & chambered in 7mmx54r. the scope mount will be made from a picatinny blank. for the stock i may go with a richards tac-driver or make my own design by reshaping the original stock then glassing it.




    i'll probably drop the barrel & receiver off in a few days to be threaded.
    i have a mauser project in 7mm-08 with the same type of barrel, i need to finish shaping the stock on it.


    for the trigger i'm still waiting to see how another guys project works out, he is building a trigger similar to how a winchester 70 is set up but with a side safety. a couple of other triggers have also been adapted to the mosin, the bold side safety trigger for a mauser 98 & the timney side safety trigger for sako L579. i also have the blueprints for a finnish adjustable target trigger.

    once this project gets a little farther along i'm going to do a early british style mosin nagant sporter in 6.5x55 swede. the stock will be similar to the rigby stocks with a short forearm & about 14 1/2"lop, double set triggers & i'll cut the rear part of the trigger bow off the triggerguard & weld on the back half of a shotgun style triggerguard because i don't want to completely get rid of the mosins magazine because thats one of the things that gives it its character
    Last edited by dirtyjim; 10-16-2008 at 09:23 PM.

  24. #24
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    Jan 2009
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    6

    Default

    is there a detachable magazine for a mosin? I haven't seen any, so I assume it is only the mauser you are talking about.

  25. #25
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    NW Arkansas. Close to the Okie line, so I can get across ahead of the tax man from Little Rock...
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    Default And I thought I got off on some weird gunsmith projects....

    ...with my Mauser and Enfield stuff. You fellows are hereby invited to the Guild of Hillbilly Gunsmiths meet at the next Tulsa Gun Show if Obama doesn't manage to outlaw them first.

  26. #26
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    Dec 1969
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    3,909

    Default

    dirtyjim can you post a pic of just your rear mod mn bolt and the cut you made in the reciever? I like it!!

  27. #27
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    Dec 1969
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    alvin texas
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    Default

    Quote Originally Posted by vintovka View Post
    dirtyjim can you post a pic of just your rear mod mn bolt and the cut you made in the reciever? I like it!!
    i can do even better, i can show it being done step by step but it will be a couple weeks.
    i'm going to do another one & i'll show how it was done.
    the scope mount in this picture is a rem700 la turned backwards & slightly modified.
    right now i'm trying to decide if i want to use the finned madsen barrel or this maxim barrel.

  28. #28
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    Dec 1969
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    BumbFK
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    Default

    You guys are crazy. I don't mean that in a mean way. But all that work on an M-N is for lovers only.
    How many psi in a CUP?

  29. #29
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    Oct 2010
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    kingman az
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    63

    Default bull

    here's mine completed
    Attached Thumbnails Attached Thumbnails bull 006.jpg   bull 003.jpg   bull 009.jpg   bull 012.jpg  

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