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Thread: 7.62mm L4 series........

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  1. #1
    Legacy Member TactAdv's Avatar
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    Quote Originally Posted by Peter Laidlericon View Post
    Breech blocks....... Supposedly, a .303 breech block is said to work by simply fitting a 7.62mm extractor!

    Yep! As stated here several times lately, a std .303 bolt will work just fine after you install a std 8mm/7.62NATO extractor. If you don't care about historical replication of the L4 mechanically, you can be up and running shooting .308 perfectly with three drop in parts:

    -7.62 extractor (installed in a std .303 bolt)
    -South African/DENEL 7.62 NATO BBL
    -Bulgarian ZB39 mags ( filled to the 25rd capacity)

    I must point out though, that this recipe is based upon you being able to source all three of those parts......which is not always easy anymore......and then, that this is based upon their installation into a factory original (uncut) machine gun receiver. Any variation upon that originality, such as a welded receiver and/or re-built to semiautomatic-only function......may impair the "plug-and-play" compatibility of the above parts. It will undoubtedly be able to make it all work, but custom fitting of the various interfaces will likely be required.

    It does work flawlessly in an original factory gun. Not an "L4", but that isn't the goal with this recipe.

    -TomH
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  3. #2
    Legacy Member Joe H's Avatar
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    Quote Originally Posted by TactAdv View Post
    Yep! As stated here several times lately, a std .303 bolt will work just fine after you install a std 8mm/7.62NATO extractor. If you don't care about historical replication of the L4 mechanically, you can be up and running shooting .308 perfectly with three drop in parts:

    -7.62 extractor (installed in a std .303 bolt)
    -South African/DENEL 7.62 NATO BBL
    -Bulgarian ZB39 mags ( filled to the 25rd capacity)

    Not an "L4", but that isn't the goal with this recipe.

    -TomH
    Also works with a semi made from a weld up demil receiver (assuming it's done correctly). I've done it.
    A little grinding in the Mag well and you can use the ZB26-30 mag with .308

    Joe
    Last edited by Joe H; 01-25-2016 at 03:57 PM.

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