Redding Reloading 40 S&W G-RX Push Thru Base Sizing Die. Because this two-die set has the ability to fully resize your case the case life is extended. The extra strength steel shaft ensures the case will not break if it is sized too large. However the two-die set does offer some advantages. First sizing die eliminates damage to the base when resizing from the rear of the cartridge case. This virtually eliminates damage to the base when resizing from the rear of the case. A separate depriming die is included with each set for the top and bottom cases. Specifications for Redding Reloading Push Thru Base Sizing Die 40 S&W G-RX: Manufacturer: Redding Reloading Caliber: .40 S&W Gun Type: Pistol Package Contents: Redding Reloading Push Thru Base Sizing Die 40 S&W G-RX Redding Reloading 96040: 40 S&W G-RX Push Thru Base Sizing Die