EGW .308 Winchester 7-Hole Cartridge Chamber Checker

The EGW .308 Winchester 7-Hole Cartridge Chamber Checker is a precision-machined reloading tool made by Evolution Gun Works for verifying cartridge dimensions and chamber fit. Its seven graduated holes let a handloader or gunsmith test .308 Winchester cases at multiple points along the body and shoulder, so rounds that fall outside spec are caught before they reach a firearm.

Built to .308 Winchester cartridge specifications and identified by SKU EGW-70165, the checker is a bench tool intended for anyone loading or servicing ammunition in that caliber and who wants a quick, repeatable check of case dimensions.

Key Features

Highlights

• Precision-machined for .308 Winchester cartridge specifications
• Seven graduated holes for comprehensive cartridge testing
• Built for handloaders and gunsmiths
• Manufacturer SKU: EGW-70165

How to use

Drop a sized, primed or loaded .308 Winchester cartridge into each of the seven graduated holes to check case body and shoulder dimensions. A cartridge that seats correctly in the appropriate hole is within spec; one that will not seat indicates a dimension that needs adjustment before use.