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    Deceased August 31st, 2020 englishman_ca's Avatar
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    The brunt of the recoil forces are not carried on the threads, in fact, they have a slight clearance. The force is transmitted through the anuli of the end of the bolt body and on the back of the bolt head. These areas will appear as shiny rings when you inspect your bolt.

    A sloppy fit with lots of bolt head over turn isnt good, but my belief is that the thread fit being tight isn't that critical. As long as the overturn is within limits, good to go.
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    Legacy Member jonh172's Avatar
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    Quote Originally Posted by englishman_ca View Post
    The brunt of the recoil forces are not carried on the threads, in fact, they have a slight clearance. The force is transmitted through the anuli of the end of the bolt body and on the back of the bolt head. These areas will appear as shiny rings when you inspect your bolt.

    A sloppy fit with lots of bolt head over turn isnt good, but my belief is that the thread fit being tight isn't that critical. As long as the overturn is within limits, good to go.
    Thank you Englishman, but if the bolt head overturns and there is no contact between it and the bolt body, as Peters article states, the recoil is taken up on the threads, which to me makes sense. Please correct me if i am wrong!
    Less over turn helps accuracy as the recoil is taken up on a square bolt body, as opposed to angled threads giving a straighter axis of recoil.

    I'm wondering if this tight bolt head will help get maximum accuracy, or at least eliminate one of the many variables to achieve max accuracy.

    Jon
    Last edited by jonh172; 06-28-2017 at 12:59 PM.

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