Description Ensure your ammunition fits perfectly with the RCBS Chamber Case Length Gauge for .243 Winchester. This precision-made gauge allows you to easily check both chambering and cartridge length. Simply drop a loaded round into the gauge; if it fits, you can be confident it will fit your pistol’s chamber. The easy-to-read engravings display the caliber size, making it simple to confirm dimensions. Designed as a one-piece, non-adjustable tool, the RCBS Chamber Gauge guarantees accuracy and reliability for all critical dimensions of your pistol ammunition.





