The Bushing Bump Neck Sizing Die is a high-precision tool designed to give you complete control over the neck tension in your cases. By sizing the neck only as much as necessary while still bumping the shoulder of the cartridge case, this die helps maintain superior case concentricity. The result is enhanced accuracy and extended case life. With improved concentricity, you'll be able to produce more consistent and accurate ammunition. The die also integrates decapping during the sizing process for greater efficiency. It includes three standard bushing sizes, specially selected by Forster, to ensure optimal performance.