EGW 10mm Auto 7-Hole Cartridge Chamber Checker

The EGW 10mm Auto 7-Hole Cartridge Chamber Checker is a precision-machined tool for verifying the dimensions of loaded 10mm Auto cartridges before they reach the chamber. Its seven-hole design lets you check multiple rounds in a single pass, catching oversized cases, improper bullet seating, and other dimensional issues that can cause feeding problems.

Built by Evolution Gun Works for reloaders and shooters who demand reliable ammunition, this checker serves as a quality-control step in the reloading process, helping confirm proper cartridge fit and function for safe, dependable range sessions.

Key Features

Highlights

• 7-hole design for checking multiple cartridges at once
• Precision machined for accurate dimensional verification
• Helps identify oversized cases and improper bullet seating
• Essential quality-control tool for 10mm Auto reloading

How to use

Drop loaded 10mm Auto cartridges into the seven holes of the checker. Rounds that seat flush indicate correct dimensions, while any that protrude or fail to seat fully signal a dimensional issue that should be corrected before use.