The Bushing Bump Neck Sizing Die is a high-precision tool designed to give you full control over the neck tension in your cases. By sizing the neck only as much as necessary while bumping the shoulder of the cartridge case, it maintains optimal concentricity, which in turn improves both accuracy and case life. With better concentricity, you will produce more consistent and accurate ammunition. The die also incorporates decapping during the sizing process for added efficiency. It comes with three standard bushing sizes, specially selected by Forster, to ensure you achieve precise and reliable reloading results.