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Thread: 7mm-08 reloads extraction issue - thoughts please

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  1. #30
    Member zimmer's Avatar
    Join Date
    Oct 2012
    Location
    Waikato
    Posts
    5,138
    Maybe need to rerun this -
    Has the rifle done this since new?
    Has the rifle done this with factory ammo and if so does it do it with all brands.
    Has it "clicked" every time the problem has occurred.
    If so the phenomenon called "clickers" is reasonable well know in reloading circles.

    Hop over to Ultimate Reloader for the best discription of causes.
    https://ultimatereloader.com/2024/03...tness-formula/
    Some you may have already eliminated.

    I think the classic clicker is when the bolt can be raised fairly easily until near the top when resistance is felt (point of final primary extraction). Operating the bolt with more vigour causes the click. All caused by the body of the case being oversize for whatever reason or as Ultimate says, a chamber dimension issue.

    When the bolt is hard to lift thoughout all its travel this is usually an excess shoulder length issue which could be caused by poor full length resizing practises or overload.

    When the problem occurs has the bolt actually fully rotated? Failing the last wee bit may not be that obvious with some actions particularly short bolt throw types.
    Last edited by zimmer; Today at 11:24 AM.
    Jhon likes this.

 

 

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