Precision case length gauge for .40 S&W with integrated shell holder. Trims cases to SAAMI spec (.840–.850") and squares case mouths for consistent reloading performance.
Precision reloading demands precision tools. The Lee Case Length Gauge is engineered to give you exactly that—a fast, accurate method for trimming your brass cases to proper length while simultaneously squaring the case mouth.
Consistent case length is fundamental to consistent ammunition. Cases that vary in length can produce inconsistent pressures and velocities, degrading accuracy and reliability. Squaring the case mouth ensures proper bullet seating and consistent neck tension.
This gauge takes the guesswork out of the process. Simply insert your case into the shell holder, and the gauge shows you exactly when your case reaches proper length. The result: uniformly trimmed brass that produces more consistent, accurate loads.
Whether you're a precision rifle shooter chasing tight groups or a handgun competitor demanding reliability, proper case preparation matters. The Lee Case Length Gauge delivers the precision you need at a price that makes sense.