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Thread: Barrel .992" 12 TPI

  1. #1
    Boolit Buddy
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    Barrel .992" 12 TPI

    I have come across a rifle barrel. The shank is .992" with a 12 TPI thread. Does anyone know what action this barrel was made for?

    Thank you.

    Jeffrey Tooker

  2. #2
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    Buckshot's Avatar
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    .............Nothing in my list shows an 'exact' .992" thread OD, but several with 12 TPI are within a couple thousandths. Is it chambered? What caliber is it? I take it there are no markings on it anywhere? Are there any cuts or other features in the breech face. Is it a smooth taper, or ?

    .............Buckshot
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  3. #3
    Boolit Master
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    How long is the shank?

    I have had a couple small ring Mausers that were that big. They are supposed to be .980" or so.

    .012" isn't very much when you are talking about 100 year old tooling.

  4. #4
    Boolit Grand Master


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    Jeffery T; could be just about anything, but possibly for anyone of the SR mausers, you need thread shank length, thread form- V type, sq etc, breech type-coned, recessed, squared, cut for extractor and on and on. Nominal thread dimensions are reference and a reason some people don't like pre-fit barrels.
    All the thread sizes shown here were taken from the old barrel and used to thread a new barrel for installationj on the action- od-shank length-tpi

    swede- .990-.620-12v
    peru mauser-.998-.835-12v
    93 sr- .985-.625-12v
    If it has a shank close to .775 long could be one of the turks 1903IIRC, what caliber is it?
    Charter Member #148

  5. #5
    Boolit Master


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    My small ring Mauser has a .985 shank. The only thing I could find in Frank De Hass' "Bolt Action Rifles"
    is a Model 89 Belgian Mauser 12 V TPI .995" diaX.760" long
    Last edited by deltaenterprizes; 04-24-2009 at 09:06 PM.

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