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  1. #1
    KHILJI is offline Plastic
    Join Date
    May 2011
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    pakistan
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    3

    Default Bore sizes of the shotgun 12 guage chokes

    Can any one let us know the bore size of the 12 guage shotgun chokes which you are using in your shotgun or avaliable in the market I am having 2 shotguns baikal MP-153 which came with along three chokes the bore size of two chokes are 18mm and one is 17.5mm. The other shotgun i have is tomahawk it also came with three chokes the bore sizes of it chokes are 18mm, 17.5mm and 17mm can any one let us know the maximum bore to minimum bore of the chokes.

  2. #2
    MarkW is offline Aluminum
    Join Date
    Jan 2008
    Location
    W. Central Illinois
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    197

    Default

    It is not the diameters, but how much smaller the diameter of the restriction is compared to the bore of the shotgun barrel.

    Here is a very good explanation, from the Briley website:

    Understanding Shotgun Chokes, A brief explanation by Briley

    Here is a quick reference chart:
    Shotgun Choke Yardage Shotgun Choke Restriction- difference between bore and choke
    Cylinder.................< 20..................0
    Skeet.......................22.5................00 5 of an inch
    Improved Cylinder.....25...................010
    Light Modified...........30...................015
    Modified...................32.5................020
    Improved Modified.... 35..................025
    Light Full...................37.5...............030
    Full...........................40 or More.....035
    Extra Full...................40 or More.....040

    The website I linked at the top has a very good explanation, so it would be informative for you to study it briefly.

    Regards,

    Mark

    P.S. Welcome to the forum.
    Last edited by MarkW; 07-31-2012 at 11:13 AM. Reason: format table better

  3. #3
    racen857's Avatar
    racen857 is offline Hot Rolled
    Join Date
    May 2012
    Location
    pennsylviana, usa
    Posts
    709

    Default

    12 gauge choke tubes

    Russian Baikal Shotguns and Remington Spartan Shotguns. Every choke we make is backed by a lifetime warranty and is made in the USA!

    Tru-Choke Choke Tubes - ChokeTube.com - Carlson's Choke Tubes, LLC

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