The RCBS Chamber/Case Length Gauge for .40 S&W is a one-piece, non-adjustable tool designed to verify that .40 S&W pistol cartridges will properly fit a firearm’s chamber. It checks critical dimensions including case length, diameter, and overall cartridge length to help identify ammunition that may not chamber reliably. The gauge features clear, easy-to-read caliber engravings and is manufactured in the USA. Its simple drop-in check makes it suitable for handloaders, armorers, and ammunition inspectors needing a quick dimensional confirmation.
Key Specifications
- The tool uses a one-piece, non-adjustable construction to check all critical dimensions.
- Designed specifically for .40 S&W pistol cartridges.
- The gauge verifies case length, diameter, and overall cartridge length to assess chamber fit.
- Features easy-to-read engravings that indicate caliber size.
- Manufactured in the USA.
- Intended use: drop a loaded round into the gauge to confirm it will fit the chamber.
- Source data lists a product weight of 0.13 (unit not specified in source data).
Simple, durable, and purpose-built, the RCBS Chamber/Case Length Gauge provides a practical method to confirm cartridge fit before use. It reduces uncertainty when evaluating ammunition dimensions and is a straightforward addition to the toolkit of anyone who needs reliable, repeatable chamber-fit checks for .40 S&W cartridges.
