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  • Specifications

    Material: 6061 T6 Aluminum
    Finish: Black Anodized
    Width: 1"
    Height: 1.6"

  • Product Details

    Our Case Gauge Ammo Checkers are machined from solid 6061 T6 aircraft grade aluminum.

    While some companies use boring bars to make chamber checkers, we use the actual Clymer reamers that are used to chamber barrels.

    Anodized matte black for durability.

    Our Cowboy Case Gauge measures 1.6" in height.
    Saami spec max length for .357 Mag is 1.59"
    Saami spec max length for 44-40 Win is 1.592"
    Saami spec max length for 44 Mag is 1.610"
    Saami spec max length for 45 Colt is 1.60"

    Warning: This product may be alloyed with trace amounts of lead and other elements which are known to the State of California to cause reproductive harm and cancer. To prevent exposure, do not alter the product by welding, grinding, etc. For more information, go to


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    You're reviewing:Cowboy Case Gauge (357, 44-40, 44 Mag, .45 Long Colt)