Sixteen gauge bore Diameter

Discussion in 'Browning Auto A-5' started by KyBoB, Dec 14, 2016.

  1. KyBoB

    KyBoB .410

    For any of you that have a 16 gauge with either improved cyl or skeet choke, what are your barrel ID dimensions.
    I'm looking at a Sweet Sixteen
    Thanks for your help.
    BoB


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  2. Setters4life

    Setters4life .270 WIN

    This may or not help you, and it may confuse you as well.

    Standard 16 ga. bore diameter is .662. So, the following choke designations should be as follows at the muzzle:

    Skeet (.005") = .657"
    Improved Cylinder (.010") = .652"
    Light Modified (.015") = .647"
    Modified (.020") = .642"
    Improved Modified (.025") = .637"
    Lite Full (.030") = .632"
    Full (.035") = .627"
    Xtra Full (.040") = .622"

    As an aside, don't always believe choke designations. I have a 20 ga. A5 that is marked MODIFIED by the stamp designation, but if I mike the muzzle it correlates to a Light Modified choke. (.015 subtracted from a twenty's bore diameter of .615 = .600.)

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