Evolution Gun Works
EGW Cowboy Chamber Checker 357 Mag 44-40 44 Mag 45 Colt
EGW Cowboy Chamber Checker 357 Mag 44-40 44 Mag 45 Colt
The EGW Cowboy Chamber Checker is a precision-machined tool for verifying chamber dimensions on revolvers chambered in .357 Magnum, .44-40, .44 Magnum, and .45 Colt. Because a single checker covers all four calibers, cowboy action shooters and revolver enthusiasts can confirm proper ammunition fit across a whole collection of guns with one compact gauge.
Drop a loaded round or a sized case into the checker to confirm it seats correctly before you rely on it at the range or in a match. The precision-machined construction supports consistent, repeatable checks, so you can sort ammunition that fits from ammunition that does not.
Key Features
| Brand | Evolution Gun Works |
| Model | EGW-70170 |
| Product Type | Chamber Checker |
| Compatible Calibers | .357 Magnum, .44-40, .44 Magnum, .45 Colt |
| Material | Machined steel |
| Condition | New |
Highlights
- One checker covers .357 Magnum, .44-40, .44 Magnum, and .45 Colt
- Precision machined construction
- Compact tool for verifying ammunition fit
How to use
Insert a loaded round or sized case into the corresponding opening of the checker and confirm it seats fully and flush. A round that does not seat indicates a fit problem worth resolving before use.
Frequently asked questions
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