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Cowboy Case Gauge Ammo Checker (.357, .44-40, .44 Mag, .45 Long Colt)
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Cowboy Case Gauge Ammo Checker (.357, .44-40, .44 Mag, .45 Long Colt)

Product #: 70170
Price: $25.00


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

EGW’s Chamber Checkers are machined from solid 6061 T6 aircraft grade aluminum. 

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

Anodized matte black for durability.

Measures min case diameter.

Measures max overall length.

Our Cowboy Chamber Checker 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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