The Bushing Bump Neck Sizing Die is a highly advanced precision die designed to give you full control over the neck tension in your cases. By sizing the neck just enough while still bumping the shoulder of the cartridge case, it ensures that overall case concentricity is maintained, which improves both accuracy and case life. The result is better, more accurate ammunition that performs consistently. This die also decaps while sizing, streamlining the reloading process. It comes with three standard bushing sizes, carefully selected by Forster, to offer the best possible fit and precision for your reloading needs.