Quickly check case length, diameter, and the overall cartridge length of your hand-loaded ammo.

Simply drop a loaded round into the precision-made gauge, and if your cartridge fits the gauge, it'll fit your pistol. Gauge checks both chamberings as well as cartridge length.
Quickly confirms ammunition will fit your pistol's chamber
Easy-to-read engravings display calibre size

The RCBS Chamber / Cartridge Gauge is a one-piece, non-adjustable gauge designed to check all critical dimensions of pistol ammunition to insure a proper fit.

Model: 88273

For more information visit: https://www.rcbs.com/case-processing/measuring/chamber-case-length-gauge/1000951.html