The RCBS Lock-Out Die detects whether a case is overcharged or undercharged with powder in progressive reloading process. If an issue is detected, the press movement locks up, halting the travel of the ram at the case mouth and alerting the reloader to the problem so the cause can be corrected. Reloaders will not be able to continue without removing the improperly charged cartridge. For extra reassurance when reloading your own cartridges, you can depend on the RCBS Lock-Out Die.
Features and Specifications:
For Use With Straight Wall Pistol Calibers 9mm And Larger, And Only On Progressive Presses
This Die Comes Assembled With A Spring-Loaded Plunger
Standard 7/8"-14 Threads Material: Steel