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Thread: Tell me about this Oberndorf Mauser action...

  1. #1

    Default Tell me about this Oberndorf Mauser action...

    I bought a box of misc gun parts at an auction and this complete action was in it. I am not familiar with old Mauser's, so need the experts to chime in...
    Two things interest me, it has the Mauser logo on top of the action, and it am not sure what kind of sight was on it, with the square fitting at the rear of the action?
    It appears the metal is good, bolt face appears to be 8mm size, but the extractor where it grabs the shell is whittled down compared to a model 70 extractor.
    Would this be good for a custom build, say in 35 Whelen, or 9.3?
    I have never used a double set trigger, but I like the bottom metal.
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  2. #2

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    The bolt handle looks like it was replaced for a scope and the action looks to be in good shape; should make a nice custom rifle, a 9.3x62 is in order. It looks to be of military decent as it has a thumb cut for a stripper clip load, these actions were also used on sporting arms after WWll into the 60's. The double set triggers are a sporting replacement for the military original. Most military bolt bodies are in the white not blued, it will require a different low swing or trigger mounted safety for scope mounting though. Orbendorf made excellent quality firearms and still does.
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    Member Float Pilot's Avatar
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    The double set trigger appears to be one of the German made aftermarket triggers from the late 1950s or early 60s.
    You need to measure the action to see which size it might be. Plsu check the bolt face opening to see if it was opened up for a magnum,
    It cocks on opening???

    Large Ring M-98
    1.410 diameter receiver ring, 8.750 in length, with screw spacing of 7.835. Barrel Shank of 1.100
    Large ring have a threaded shank diameter of 1.10 in. With 12 threads per inch.
    M-33-40 Small Ring,
    1.30 diameter. receiver ring, 8.50 in length with screw spacing of 7.835.
    Small Ring Long action. Lighting cuts on sides of receiver. Have a threaded shank diameter of .98 in. With 12 threads per inch.
    Intermediate Large Ring M-98 ,(Large ring, Short action)
    1.410 diameter. receiver ring, 8.50 in length, with screw spacing of 7.620
    Intermediate Large ring have a threaded shank diameter of 1.10 in. With 12 threads per inch.
    Mexicans by FN and Belgium, the M24, M47, M48 by FN and Yugoslavia.
    WWI German KAR98A,
    1.30 diameter. receiver ring, 8.750 in length, with screw spacing, of 7.835 (Long action, Small ring).
    Has a threaded shank diameter of 1.100 in. With 12 threads per inch.
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    Can't see the Mauser logo. If you could take a photo of it so we could see it? If it is genuine that is a pre-war (WWII), Mauser commercial action. I do not know about the thing on the back, I cannot see enough detail as the photo is too small, need a close-up. For that you would have to contact a specialist such as New England Custom Guns.
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  5. #5

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    Thanks guys. It measures 8.750 length, large ring. The Serial number is 1118XX and on side of action says:
    Mauser-Werke A-G Oberndorf A/N. The bottom metal has the last three digits of the serial number on it, so it appears it came that way originally with the double set triggers...?? The bolt/bolt handle has the last four of the s/n and bolt parts and bolt realease has the last two digits of s/n. The extractor has the last digit of the s/n.

    The bolt works smooth as butter, it is screaming build me, build me... I just don't know where to find a scope mount for that rear square opeining on top of the action??? Then what to do on the front, drill it? I suppose a good smith who would install the barrel could handle all that. Just not sure what I am getting into here, versus if I came upon a Win 70 or Rem 700 action for example.

    I am curious how old it is and what kind of rifle it originally was, since it appears to be a civilian Mauser. I know some of you out there have a bunch of Mauser knowledge, this is my first one besides a mil-surp swede 6.5 Carl G. I've attached a couple more pics, not good with my phone camera, as you can tell!! Maybe they will help...
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    The rear square mount is for a claw mount scope- the other one was on the barrel. The odds of finding a match is about zipp so it will have to go. A lot of these were silver soldered on instead of screwed.

    The double set triggers like the add-on that Stogers and others sold in the 50s and 60s. It requires a special sear to replace the trigger assembly - it is pinned to the bottom of the receiver where the trigger assembly went. Hopefully you got it with the parts. Single and double set triggers were once very popular in this country and have always been popular in Europe. Canjar used to make a very nice SST for a number of rifles but unfortunaly he died and they are no longer made for some reason. I personally like the set triggers but they take some getting used to.

    Mauser made contract military rifles with the banner on the ring like yours. Ye Olde Hunter imported a bunch of those in the 60s. Hard to determine if yours is a commercial or military - don't know if it really matters. Either way it will be the basis for a fine sporter.

    Quote Originally Posted by Ozarks View Post
    Thanks guys. It measures 8.750 length, large ring. The Serial number is 1118XX and on side of action says:
    Mauser-Werke A-G Oberndorf A/N. The bottom metal has the last three digits of the serial number on it, so it appears it came that way originally with the double set triggers...?? The bolt/bolt handle has the last four of the s/n and bolt parts and bolt realease has the last two digits of s/n. The extractor has the last digit of the s/n.

    The bolt works smooth as butter, it is screaming build me, build me... I just don't know where to find a scope mount for that rear square opeining on top of the action??? Then what to do on the front, drill it? I suppose a good smith who would install the barrel could handle all that. Just not sure what I am getting into here, versus if I came upon a Win 70 or Rem 700 action for example.

    I am curious how old it is and what kind of rifle it originally was, since it appears to be a civilian Mauser. I know some of you out there have a bunch of Mauser knowledge, this is my first one besides a mil-surp swede 6.5 Carl G. I've attached a couple more pics, not good with my phone camera, as you can tell!! Maybe they will help...
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    Here are some bad photos of the double set triggers that came with my Husqvarna lightweight. I think it is the same set-up you have. German made from the 1950s.

    If that rear mount can't be modified to a modern scope mount... you could also see if it could be modified to clear a nice old Lyman or Redfield peep sight. Then set your rifle up like a classic 1920s or 1930s Mauser safari rifle. Go 9.3x62 or something along those lines. Or open up the bolt face and go to something like the 416 Taylor.
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  8. #8

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    Appreciate all the input from everyone. I'm getting a better feel for what it is now.
    Float Pilot, you have some great ideas there! I was thinking 9.3x62 possibly... I have a 338-06 and 338 Winnie, and I sold my (wish I hadn't now) pre-64 in 375HH. 416 Taylor, had not considered that, but hmmmm.... That definitely would be a step up from 338!!!

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    You can buy new head stamped 416 Taylor brass or make it from 458 Win mag brass (midway) . It is very easy to hand-load. You would have to open the bolt face to a magnum and you you only have 3 rounds in the magazine... But a 416 caliber 400 grain bullet at 2,350 is nothing to laugh at...
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    NECG can match or build you a front mount. Build a classic with an aperature sight or have NECG look at the action and tell you how they could work with it. They specialize in that sort of thing. Check out their website.
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