.40 Smith & Wesson Chamber / Case Length Gauge by RCBS carries the .40 Smith & Wesson Chamber / Case Length Gauge from RCBS. The .40 Smith & Wesson Chamber / Case Length Gauge does double duty. Drop the handloaded round into the chamber gauge and check both chambering as well as cartridge length. The .40 Smith & Wesson Chamber / Case Length Gauge is made of steel and comes with a Limited lifetime warranty.
