Barrel length

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  • Nazgul

    Master
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    Dec 2, 2012
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    Near the big river.
    Is there any info on how Indiana measures barrel length?

    I have a Marlin Guide gun and would like to shorten the barrel to get rid of the ports.

    Measured from the receiver to end it would be just short of 16".

    If you drop a dowel into the barrel it would be 16 1/8th" when done.

    I have heard of both ways of measuring, not sure what Indiana uses.

    Thanks, Don
     

    Nazgul

    Master
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    Dec 2, 2012
    2,538
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    Near the big river.
    "The barrel length (shotgun or rifle) is measured from the face of the closed bolt (less firing pin) to the muzzle. If there is a removable device on the end of the barrel, it must be removed prior to measuring. If there is a non-removable device on the end of the barrel, length is measured to the forward end of that device.

    Per a phone call to the ATF, they use a measured dowel, (steel, wood, or fiberglass) and inserted into the barrel. If there's any dowel showing..... they confiscate the firearm and send it to their firearms lab for confirmation, and if illegal length is confirmed, the decision is made on any possible charges to be filed."

    The only reference I could find.

    Don
     

    Reagan40

    Sharpshooter
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    Dec 30, 2013
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    too far from nature
    I have always used a dowel rod against the closed bolt. This was the method used by the Canadian authorities that I had to use when taking a rifle into Canada as well. I would guess this is the universal standard for measuring barrel length.
     
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