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Evolution Gun Works Chamber Checker Up to 13% Off — 2 models

Evolution Gun Works Cowboy Chamber Checker for 357, 44-40, 44 Mag, and .45 Long Colt Calibers 70170
Evolution Gun Works 20 Gauge Chamber Checker 70196
Evolution Gun Works Cowboy Chamber Checker for 357, 44-40, 44 Mag, and .45 Long Colt Calibers 70170
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Evolution Gun Works Cowboy Chamber Checker for 357, 44-40, 44 Mag, and .45 Long Colt Calibers 70170
Evolution Gun Works 20 Gauge Chamber Checker 70196
2 of 2 images
Evolution Gun Works 20 Gauge Chamber Checker 70196

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Customer Reviews
Helpful Positive Review
Just what the Dr. Ordered by Terry Anderson, March 13, 2017
For the longest time I had difficulty in loading 44-40 cartridges. This device eliminated my difficulties by identifying the cause. The other case checking features are excellent also. Well worth the few dollars spent on this item and I wish I had...
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1/1 found this helpful
Most Recent Reviews
Chamber Checker by AZ Parson, Verified Owner, April 10, 2015
A must have period for anyone who reloads for Cowboy Action Shooting. Some Actions Like the 1873 in 44-40 are very sensitive to crimp and chamber size. This is a quick way to ensure each round will chamber. In the middle of a stage you don't need ...
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2 Models Available
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Product Info for Evolution Gun Works Chamber Checker

The EGW Cowboy Chamber Checker 70170 has been developed so that you can check 357, 44-40, 44 Mag, and .45 Long Colt with one easy to use checker. The Evolution Gun Works Cowboy Chamber Checker and has an anodized matte black finish for amazing durability. The Cowboy Chamber Checker uses the actual Clymer reamers that are used to chamber barrels.image

Specifications for Evolution Gun Works Chamber Checker:

Manufacturer: Evolution Gun Works
Quantity: 1
Color: Black
Condition: New
Fabric/Material: 6061-T6 Aluminum
Finish: Matte

Features of Evolution Gun Works Chamber Checker:

  • Machined from solid 6061 T6 aircraft grade aluminum.
  • Check 357, 44-40, 44 Mag, and .45 Long Colt with one checker.
  • EGW uses the actual Clymer reamers that are used to chamber barrels.
  • Anodized matte black for durability.

Package Contents:

  • Evolution Gun Works Chamber Checker

Evolution Gun Works Chamber Checker Orderable Models

List of Orderable Models

  • Evolution Gun Works Chamber Checker, Cowboy 357, 44-40, 44 Mag, and .45 Long Colt Calibers, 70170 , MPN: 70170 , UPC: 841370107797 , Code: KK-R8-GVBT-70170
  • Evolution Gun Works Chamber Checker, 20 Gauge, 70196 , MPN: 70196 , UPC: 841370107865 , Code: KK-R8-GVBT-70196

Evolution Gun Works Chamber Checker Unavailable & Discontinued Models

List of Unorderable Models

  • Evolution Gun Works Chamber Checker, 12 Gauge, 70195 , MPN: 70195 , UPC: 841370107858 , Code: KK-R8-GVBT-70195
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Last updated 2026-07-07 UTC.