
Availability: In Stock
The EGW Cowboy Checker is a multi-caliber case gauge designed for reloaders and Cowboy Action shooters who need to verify ammunition dimensions before competition or hunting. This single tool checks four popular revolver calibers—.357 Magnum, .44-40, .44 Magnum, and .45 Colt—eliminating the need to buy separate gauges for each cartridge. Whether you're prepping ammunition for a match or ensuring your handloads meet spec before heading afield, this checker helps you catch out-of-tolerance rounds that could cause feeding issues, jams, or misfires.
Out-of-spec ammo isn't just a nuisance—it can cost you points in competition or leave you with a firearm that won't cycle reliably when it matters. The EGW Cowboy Checker lets you verify case dimensions quickly and confidently, giving you peace of mind that your loads are ready to go. The tool is machined from aluminum and features precision-bored check holes produced using Clymer reamers, the same reaming equipment trusted by ammunition manufacturers and precision reloaders.
If you reload for Cowboy Action events or keep a variety of revolver calibers on hand, this multi-caliber case gauge is a practical addition to your reloading bench. It's straightforward to use, durable, and consolidates quality control for four of the most common large-bore revolver rounds into one tool.
| Brand | EGW |
| Product Type | Multi-Caliber Case Gauge |
| Calibers Checked | .357 Magnum, .44-40, .44 Magnum, .45 Colt |
| Material | Machined Aluminum |
| Reamer Source | Clymer |
The EGW Cowboy Checker is designed to check .357 Magnum, .44-40, .44 Magnum, and .45 Colt. These are four of the most common revolver calibers used in Cowboy Action Shooting, making this a practical multi-caliber solution for competitors and reloaders who work with these rounds.
A case gauge allows you to quickly verify that your reloaded ammunition meets proper dimensions before firing. Out-of-spec cases can cause feeding issues, jams, and misfires. By checking your rounds before they go into your gun, you eliminate unreliable ammunition and improve reliability and safety.
Yes. The EGW Cowboy Checker is specifically designed for reloaders and shooters who compete in Cowboy Action events. It helps ensure all your match ammunition is in spec, which is critical for avoiding malfunctions that could cost you points or stages.
The EGW Cowboy Checker consolidates quality control for four calibers into one tool with precision-bored check holes. Instead of purchasing and storing four separate gauges, you get a single, compact tool that covers the most common Cowboy Action revolver calibers.

SKU: 197556042 • Weight: 0.3oz




Availability: In Stock
The EGW Cowboy Checker is a multi-caliber case gauge designed for reloaders and Cowboy Action shooters who need to verify ammunition dimensions before competition or hunting. This single tool checks four popular revolver calibers—.357 Magnum, .44-40, .44 Magnum, and .45 Colt—eliminating the need to buy separate gauges for each cartridge. Whether you're prepping ammunition for a match or ensuring your handloads meet spec before heading afield, this checker helps you catch out-of-tolerance rounds that could cause feeding issues, jams, or misfires.
Out-of-spec ammo isn't just a nuisance—it can cost you points in competition or leave you with a firearm that won't cycle reliably when it matters. The EGW Cowboy Checker lets you verify case dimensions quickly and confidently, giving you peace of mind that your loads are ready to go. The tool is machined from aluminum and features precision-bored check holes produced using Clymer reamers, the same reaming equipment trusted by ammunition manufacturers and precision reloaders.
If you reload for Cowboy Action events or keep a variety of revolver calibers on hand, this multi-caliber case gauge is a practical addition to your reloading bench. It's straightforward to use, durable, and consolidates quality control for four of the most common large-bore revolver rounds into one tool.
| Brand | EGW |
| Product Type | Multi-Caliber Case Gauge |
| Calibers Checked | .357 Magnum, .44-40, .44 Magnum, .45 Colt |
| Material | Machined Aluminum |
| Reamer Source | Clymer |
The EGW Cowboy Checker is designed to check .357 Magnum, .44-40, .44 Magnum, and .45 Colt. These are four of the most common revolver calibers used in Cowboy Action Shooting, making this a practical multi-caliber solution for competitors and reloaders who work with these rounds.
A case gauge allows you to quickly verify that your reloaded ammunition meets proper dimensions before firing. Out-of-spec cases can cause feeding issues, jams, and misfires. By checking your rounds before they go into your gun, you eliminate unreliable ammunition and improve reliability and safety.
Yes. The EGW Cowboy Checker is specifically designed for reloaders and shooters who compete in Cowboy Action events. It helps ensure all your match ammunition is in spec, which is critical for avoiding malfunctions that could cost you points or stages.
The EGW Cowboy Checker consolidates quality control for four calibers into one tool with precision-bored check holes. Instead of purchasing and storing four separate gauges, you get a single, compact tool that covers the most common Cowboy Action revolver calibers.
SKU: 197556042 • Weight: 0.3oz
