Rebarreling an old mauser

Discussion in 'Gunsmithing Forum' started by PatrickHarrison, Nov 9, 2011.

  1. PatrickHarrison

    PatrickHarrison New Member

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    I have a 7X57 spanish mauser thats been slightly sporterized the barrels shot out of but the rest of the guns ready to go hunt. i already have other rifles to take its place. I seen the adams and bennet barrels at midway usa and seen one that caught my eye a .458 winchester magnum somethin unique and large and in charge after i looked it up i want it. How easy/hard would it be to convert the bolt to the round and rebarreling the mauser? Price n time ?? Thanks for any info
     
  2. bmynrd731

    bmynrd731 New Member

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    These are good barrel makers but i would try kreiger baarrels they can make the barrel and also i think they can take the receiver and headspace them and other stuff for a prices. Check to see if you live nere a gunsmith who has been at it a while they could tell ya if it can be done and if the price is to high. Maynard:)
     

  3. Shade

    Shade New Member

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    I will be getting a German Mauser shortly, beat up wood barrel shot out.
    but the action and bolt are in good condition, I will be remaking it into
    a nice hunting rifle. I am leaning toward chambering it into a .338 Federal
    the head of the .338 and 8x57 is the same. I have a list around here
    of the round with the same head a the 7/8x57 Mauser.

    I will post it if I find it.
     
  4. Shade

    Shade New Member

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  5. PatrickHarrison

    PatrickHarrison New Member

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    Apra**** it id like to keep 7x57 its very nice balisticly but i think somethin out there would be fun specialy on hogs a .458 win mag would be awesome but thanks for info ill talk to a gunsmith bout it and krieger barrels huh ill look at it and the book will be good literature in the quest thanks good hunting !!
     
  6. chewchew

    chewchew New Member

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    You need to get someone that has done this several times, the head space is critical, you must get it right for the gun to work properly. I have screwed one up before and unless you are a good gunsmith, I wouldn't try it. I've even seen one with the front sight an eighth of an inch off and it looked like crap.
     
  7. Axxe55

    Axxe55 The Apocalypse Is Coming.....

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    patrick, i'm going to throw in my two cents worth on the matter. a person with mechanical aptitude could rebarrel a mauser with the proper tools. it's not too difficult if you pay attention to what you're doing and take your time. okay, reality check here, unless you plan on doing several, it's not really cost effective to do one rifle.

    the tools you will need: barrel vise to hold the barrel. $60-100. an action wrench to turn the action on the barrel. $50-75. finish reamer to ream the chamber to size. $100-150. headspace gauges to check the headspace. $50-75. depth micrometer to do the measuring. $75-150. then you will need the barrel in whatever caliber you want. $150-400. and if you wanted to do several, then you at the very least need reamers and headspace gauges for any caliber you wanted to do. so only wanting to do one rifle, costwise it would be better to let a barrel maker or a gunsmith do the job.
     
  8. triggerman770

    triggerman770 New Member

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    Rebarrelling

    and you would have to open up the boltface to accept the magnum cartridge or buy and headspace the magnum bolt
     
  9. Axxe55

    Axxe55 The Apocalypse Is Coming.....

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    very true on the bolt face, if going to a magnum caliber. do they make a magnum bolt for the mauser's?
     
  10. natman

    natman Member

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    Probably not a good idea because:

    You'd need to open the bolt face.
    You'd probably need to change the feed rails to get the much fatter 458 cartridge to feed. (a job for an experienced gunsmith)
    Your 7x57 is probably a small ring, and rebarreling one to a full pressure round is not a good idea. No, it probably won't blow up, but gas handling isn't as sophisticated as on a large ring.

    In short, don't do it.
     
  11. RaySendero

    RaySendero Member

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    Pat, I'd suggest you keep it as 7x57!

    You have a few other good options - 257 Rob, 8x57, 9.3x57 (if you reload), but they don't seems to me as great as the 7x57.
     
    Last edited: Nov 23, 2011
  12. HotGuns

    HotGuns Member

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    Some thoughts on rebarreling a 7x57.

    Having done several, the largest caliber I am willing to go is the .308.
    Its not because of the caliber per say, but because of the differences in heat treat of barrels and receivers back in the day. So many different countries built Mauser rifles and the manufacturing methods used were very different from one country to another.What may be safe in one Mauser may not be safe in another.

    The last Mauser I did, the barrel was so tight that I couldnt not get it off, using every tool and tactic known to man. I ended up cutting the barrel off in the bandsaw, and boring the remainder of the barrel out. I have read that this is not uncommon with Mauser rifles.

    On another Mauser I did, the barrel was so loose that the wieght of the barrel wrench itself was enough to breake it loose. It was told that the gun never did shoot worth a hoot, that may have been why.

    I did rebarrel a 7x57 with an Adams and Bennet barrel. They are considered the el cheapo barrels of the barrel world. That gun shot as well as any other I have ever done, including some of the higher end custom barrel makers that everyone knows.
     
  13. PatrickHarrison

    PatrickHarrison New Member

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    Ty for info people ill keep it 7mm after further review seems like a costly project thatll i do later on
     
  14. Shade

    Shade New Member

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    Well, gee take all the fun out of it...

    :rolleyes: :D

    9.3x62 - That's my second choice after .338 Federal

    7mm is not a bad choice at all.
     
    Last edited: Nov 26, 2011
  15. Axxe55

    Axxe55 The Apocalypse Is Coming.....

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    shade, not trying to take the fun out it! just a lot of people think you can build these old guns cheap and get any caliber they want. but after looking at what tools it takes to do one gun, it would be cheaper to have a gunsmith or barrelmaker do the job. now if a person was going to do several in different calibers that were capable of being used in the action they had, then it might be more cost effective.
     
  16. triggerman770

    triggerman770 New Member

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    yep, but they are very hard to find
     
  17. Shade

    Shade New Member

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    I was just kidding, your right to do one is not cheap. I plan on doing mine
    but it will not be the last and several of the components like the barrel vise
    I will build myself. Action wrench I will buy. And the floating reamer holder
    which you did not mention will be purchased. But I already have a fairly
    well equiped machine shop.

    I agree, it is not a trivial setup.

    Edit, I already have the .338 Federal Reamer; but 9.3 x 62 Mauser is very
    tempting. BTW, 9.3x57 is different than 9.3x62 Mauser not a mistake.
     
    Last edited: Nov 26, 2011
  18. Axxe55

    Axxe55 The Apocalypse Is Coming.....

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    shade, you are probably better equiped than most, and for you it would be a nominal investment. my comments were directed at those who plan on one gun and don't have a fully equiped shop. i looked into it myself several years ago, and priced everything to do one rifle, i would still come out money ahead letting a gunsmith or barrelmaker do the job. now i understand some people are just hands on type people and want to do it themselves, but also some of these type people hardly care about the cost in the first place.
     
  19. Shade

    Shade New Member

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    Yup, I can do it myself for 4x the cost and 10x the time... LOL
    yeah that's kinda me... but getting there is half the fun... :D

    But even if you just own a Mauser the book "The Mauser Bolt Actions"
    by Jerry Kuhnhausen is still an excellent read.
     
  20. Axxe55

    Axxe55 The Apocalypse Is Coming.....

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    i agree shade. as sometimes i am one of those people too! sometimes i just want the satisfaction of being able to say i did it myself. but i also enjoy working on my guns, and enjoy the satisfaction of knowing my guns better than anyone else. i too, am a hands on kind if person!