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What's "wrong" with the 464

Discussion in 'Mossberg 464 Lever Action' started by schotzfyred, Jun 23, 2018.

  1. CaddmannQ

    CaddmannQ 12g Supporter

    Messages:
    8,567
    BTW, This is not true, even if the bolt is already out. The Marlin is much easier to change, because the 464 is harder to get apart.
    meanstreak likes this.
  2. Tejas Firearm Concepts

    Tejas Firearm Concepts .22LR

    Messages:
    10
    Usually this is an issue of design engineering tolerances (I'm an engineer that used to be a machinist, so this is right in my wheelhouse). Engineers designing components dont understand manufacturing processes, so the manufacturing engineers have a heck of a time trying to make the parts work, and there is almost never good feedback to the design engineers. On top of that, improvements (like polishing parts) add cost, so making things better makes them more pricey, and that often works against the marketing value proposition that is the basis for the entire product line.

    Perfect case in point is firearms for which the #1 modification is to polish the feed ramp.
  3. meanstreak

    meanstreak .30-06 Supporter "Philanthropist"

    Messages:
    3,791
    That a beauty.
  4. tommygun

    tommygun Copper BB

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    5
    I have a feeding problem with my 464....going to have to take it apart and figure out why.
    Any help is appreciated. Sometimes the bolt will not go completely forward and have too back it off again about 1/4 way and then the bolt will go home. I tried different types of ammo and doesn`t seem to make any difference.
    meanstreak likes this.
  5. Bobster

    Bobster .30-06 Supporter

    Messages:
    2,203
    Other
    Search this topic to see if anyone else has had a similar problem and/or disassembly instructions/pictures. I think taking it apart is a good thing--look for areas that might be rubbing. Good Luck!
    meanstreak likes this.
  6. CaddmannQ

    CaddmannQ 12g Supporter

    Messages:
    8,567
    I have only owned leverguns for a few years, but my .30-30 and .357 are both sensitive to ammo length.
    When I press the OAL a bit shorter than book length, just 0.010" or less, action reliability increases a lot.

    I still can get a hang, but holding/running the gun correctly in a big deal. It's easy to short-shuck.

    On my 464 I spent lots of time polishing excess marinecote silver finish off the internal receiver.
    If yours is Marinecote rather than blue, i'd look for spots where it seems to drag on the bolt.

    The top of my hammer didn't ride solid on the bolt, but ran along one edge. The wear mark was evident.
    I dressed the hammer off until it had good contact along the underside of the bolt.

    I broke an extractor, when an overlength round stuck out of battery. They are weak so order a spare.

    My hammer fall wasn't 100% solid. I had to bend the link which forces mainspring to hammer to remove the slop.

    I did some other stuff I can't recall now, but it's all recorded in these pages if you look.
    meanstreak likes this.
  7. tommygun

    tommygun Copper BB

    Messages:
    5
    Thanks for the tips :)
    meanstreak likes this.
  8. tommygun

    tommygun Copper BB

    Messages:
    5
    I will disassemble the receiver after deer season and see what I can do.
    meanstreak likes this.

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