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Thread: 95 mauser conversion

  1. #1
    Boolit Buddy
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    95 mauser conversion

    Has anyone done this?
    Is conversion to 7.62x39 as simple as installing a new barrel?
    It seems like cartridges fit/feed from mag & cases fit bolt face ok

  2. #2
    Boolit Master
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    I did a 93 years ago.
    You had to have a filler block in the magazine for the shorter cartridges.
    The rounds fit loose on the bolt face and sometimes ejection was spotty even though with the extractor being slightly modified the extraction out of the chamber worked.
    I would do another one, but it is more than just swapping out the barrel.

  3. #3
    Boolit Master map55b's Avatar
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    I agree with LAGS. I've done two, one had no issue with extraction with other the claw didn't fit as well. Unless your doing a conversion with something that is of the same parent case there is always some "adjusting and fitting," but it can be done and I'd do it again too.

  4. #4
    Boolit Master

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    I still have mine, but it doesn't see much use anymore because I got a Mk X Mini-Mauser in 7.62x39mm. The magazine box can be shortened by putting a spacer in the rear. Here a piece of light weight channel iron was tack welded to the rear of the box. The most difficult part of the conversion is the follower. The one shown is actually plastic and came from GP Corp. and is powered by a pair of coil springs rather than the conventional "Z" spring. It's a fun conversion to make and shoot, but the bolt cycle is long because it still has to travel the original distance across the spacer block to pick up the shorter 7.62x39mm cartridge. I didn't have any trouble with the extraction, but that seems to be an individual problem that could be solved with some fitting. One could try several different extractors before they started grinding. The flat bottom of the '93 bolt seemed like a natural to help with feeding, and I never tried the round later production bolt face.

  5. #5
    Boolit Buddy
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    What about to 30-30?

  6. #6
    Boolit Master Texas by God's Avatar
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    Quote Originally Posted by cosmoline one View Post
    What about to 30-30?
    Doable. And works better than the 7.62x39 I did on a 98 years ago. I reworked the same barrel to fit this 1916 Spaniard (93 Mauser) and chambered to 30-30 Win.

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  7. #7
    Boolit Bub 405grain's Avatar
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    I did a 7.62x39 conversion on a 1894 Brazilian a couple of years ago and it works great. There is some fitting and tweeking that needs to be done, but the conversion is do-able. I'm doing another 7.62x39 conversion on a '93 Spanish action for my younger brother, and I anticipate that it will have the same teething pains as the project progresses. On the whole, this is a fun conversion, and the rifles in this caliber are really handy. An alteration that I've found really useful when converting a small ring Mauser to 7.62x39 is to modify the ejector box assembly from a type 99 Arisaka to fit the receiver. This improves the ejection and slightly shortens the bolt throw.
    That small ring conversion to 30-30 by Texas by God looks very interesting. I've got a couple of 1895 Chilean actions sitting in a box in the cabinet, and a 30 caliber barrel blank, and was wondering what I could do with them. I have been fiddling with the notion of cutting the head off of a '93 bolt (the '95 bolts are getting a little scarce) and attaching the magnum bolt head from a Savage 110 to it. Then I could use this to do a conversion on the Mauser to 30-40 Krag. I'd have to grind out the guide rib in the receiver, and figure out an angled magazine box, but with time and perspiration it's a conversion that could work. (the 303 British would work with that bolt head & action too)
    But with all that fevered thinking and planning you've gone and shown me a 30-30 Mauser, and now the gears in my head are spinning too fast! I'm intrigued about this gun. Can you show or tell us some more about it? Aside from opening up the bolt face, what other modifications did you have to do? Did you reconfigure the claw on the extractor so that it looks like the ones on Siamese Mausers & P14 Enfields? Did you fabricate an angled magazine box, or make inserts to go inside the existing mag box? Is it single or double stack? What modifications did you make to the follower? Details please.

  8. #8
    Boolit Master

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    Nice looking rifle Tex! I'd like to hear more about it also.

  9. #9
    Boolit Master Texas by God's Avatar
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    It's still a thread on "The Barrel Works" under the title Barrel nut on an SR Mauser. But the pics are gone. I will re-post what I can ASAP. It has become one of my favorite rifles because it is so accurate and fun. I'm considering getting an unmodified follower so I can get a little more OAL on cartridges loaded with 150 gr J-word spitzers.
    Thomas

  10. #10
    Boolit Master Texas by God's Avatar
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    I came up with this to keep the rims from falling off the rear edge of the follower. Somone had previously beveled the top rear edge to allow the bolt to ride over.
    More to come.

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  11. #11
    Boolit Bub 405grain's Avatar
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    I read through the thread in the barrel works. That's a great build, with lots of good ideas. What did you use to open up the bolt face? I opened a bolt face in the lathe once with carbide tooling, and that bolt was hard as a diamond! I'm astonished that a 30-30 will feed from the magazine without working on the feed rails, but that's really encouraging news. I hadn't really thought about using a barrel nut on a small ring Mauser, but doing so will allow using the 1" diameter barrel blanks from Green Mountain, and that will save a lot of cash.

  12. #12
    Boolit Master Texas by God's Avatar
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    The 93 bolt face had to be opened slightly and the extractor modified for the 30-30 rim. I polished the feed ramp till it fed blunt nose boolits. Of course the rims must be stacked or a jam will result and you can't load more than three in the mag without problems. Luckily it has a hinged floorplate in case I mess up loading it.
    The barrel is the same 7.62x39 Numrich I bought years ago for the 98 project. Cutting off the LR threads and rethreading and rechambering went smoothly. My beta test load was factory Rem 150 CoreLokt because it MUST work with factory loads in case I loan it to family. It is still controlled feed.

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  13. #13
    Boolit Master Texas by God's Avatar
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    I used a rotary file in a drill press with the bolt held in the drill press vise. The Spanish bolt isn't overly hard. The other work was good old needle files and dremel tool bits. The barrel nut idea was abandoned early as un-needed in this case. Mapp 55b has built some cool rifles along this path as well as others I bounced ideas off of. Good luck with your project and post your progress!
    Best, Thomas.

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  14. #14
    Boolit Master
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    Hey TbG, rifle looks a lot better with the old military barrel gone!!
    "What makes you think I care" ........High Plains Drifter

    Rick C.

  15. #15
    Boolit Master Texas by God's Avatar
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    Thanks, hpdrifter! You kinda set this in motion and your stockwork draws compliments. Do you still have old "W"- the .270?

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Abbreviations used in Reloading

BP Bronze Point IMR Improved Military Rifle PTD Pointed
BR Bench Rest M Magnum RN Round Nose
BT Boat Tail PL Power-Lokt SP Soft Point
C Compressed Charge PR Primer SPCL Soft Point "Core-Lokt"
HP Hollow Point PSPCL Pointed Soft Point "Core Lokt" C.O.L. Cartridge Overall Length
PSP Pointed Soft Point Spz Spitzer Point SBT Spitzer Boat Tail
LRN Lead Round Nose LWC Lead Wad Cutter LSWC Lead Semi Wad Cutter
GC Gas Check