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Thread: Increasing Bullet Diameter With a Lubrisizer

  1. #1
    Boolit Bub Mr. Kiss Kiss Bang Bang's Avatar
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    Increasing Bullet Diameter With a Lubrisizer

    I need to bump up the size of my bullets a few thou. I know I read how to do it on hear but I canít seem to find it. My Whitney Kennedy 44-40 has a very oversized bore and I would like to use the mold I have.

  2. #2
    Boolit Master
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    It might be cheaper in the long run to have a mold maker just up scale your favorite bullet to the correct size. The problem with "bumping" up a bullet diameter is more than just one thing. First off, the small diameter will change before the driving bands change because it is weaker. Then there is the increased wear on the lube sizer. Those things are not cheap these days.

    As an alternative, consider beagling the mold or lapping your mold or a different mold of similar form. The next alternative is to build up the bullet diameter by powder coating.

    https://castboolits.gunloads.com/sho...ht=beagle+mold

  3. #3
    Boolit Bub Mr. Kiss Kiss Bang Bang's Avatar
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    I might just get a custom mold made. I don’t want to change my existing mold as I use it for other guns. Maybe powder coating, never tried that before

  4. #4
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    JonB_in_Glencoe's Avatar
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    Bumping a "few thou" increase on a 43 cal boolit is impossible without swaging dies.
    ~~~~~~~~~~~~~~
    ďIf someone has a gun and is trying to kill you, it would be reasonable to shoot back with your own gun.Ē
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  5. #5
    Boolit Grand Master

    Winger Ed.'s Avatar
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    I don't think even JB Weld or duct tape can fix that.

    If powder coating won't do it, you'll need another mold, or maybe beagle out the one ya have.
    Political Correctness and the cancel culture is only allowed to exist because of the coward culture.


    In school: We learn lessons, and are given tests.
    In life: We are given tests, and learn lessons.

  6. #6
    Boolit Master
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    I have done it nicely but it's better with softer alloy. Use larger sizer, correct nose punch and good leverage...measure as you go to determine how much force is needed.

    I also used a swaging press to move banged up .312 hbwc up to .314s with sharp bases.

  7. #7
    Boolit Master
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    beagle the mold you have or lamenting do a search

  8. #8
    Boolit Grand Master

    gwpercle's Avatar
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    First try using a soft alloy and powder coating with the mould you have .
    I don't powder coat but it seems its a simple "shake and bake" process .
    The soft alloy (like 1 in 20 Tin-lead) will allow the bullet to bump up and the powder coating will add size to the boolit but take care of any leading .

    If you don't want to powder coat them ... go soft and use a good boolit lube .
    Gary
    Certified Cajun
    Proud Member of The Basket of Deplorables
    " Let's Go Brandon !"

  9. #9
    Boolit Master gpidaho's Avatar
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    KKBB: Check out this mould at the Accurate site catalog. It solved some 44-40 problems for me. The Ed Harris designed 43-200QL. Gp

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