RCBS Expander/Decapping Assembly Features The RCBS Expander/Decapping Assembly is built around an ultra-hard carbide expander button a material chosen specifically because it resists the wear and galling that softer steel buttons experience after repeated use. This durability translates into more consistent neck expansion across thousands of reloading cycles which matters to reloaders who process large volumes of brass. The assembly s adjustable positioning sleeve lets the reloader precisely set how far the expander travels into the case neck giving fine control over neck tension on the finished round. This level of adjustability helps reloaders dial in the exact bullet pull needed for their particular load and rifle. Sized for 8mm cartridge cases this assembly fits into RCBS s broader line of expander and decapping components covering most popular reloading calibers. As a replacement or upgrade part it allows reloaders to extend the service life of an existing die rather than purchasing an entirely new sizing die. RCBS has built a long-standing reputation among reloaders for well-engineered durable components that stand up to high-volume use. Handloaders working with 8mm cases looking for a dependable carbide expander assembly will find this RCBS component a solid choice. RCBS Expander/Decapping Assembly Specifications Manufacturer: RCBS Caliber: 8mm Type: Expander/Decapping Assembly Available At: GrabAGun