The RCBS Pistol Chamber/Case Length Gauge is designed for quick checking of case length, diameter, and overall cartridge length of handloaded 38 Special pistol ammo.
If a cartridge fits into this precision-made gauge, it will fit into the pistol, ensuring that the ammunition is compatible with the firearm's chamber.
It features easy-to-read engravings for caliber size and is a one-piece, non-adjustable tool that checks all critical dimensions of pistol ammunition.