12 Gauge Cartridge Flange Expander Tool
12 Gauge Crimping Mouthpiece for Shotgun Shells.
This precision-engineered crimping mouthpiece is specifically designed for 12 gauge shotgun cartridges, offering a reliable solution for modifying and customizing your ammunition. By carefully trimming the excess length, it enables the transformation of standard 12/70 shells into optimized 12.65 gauge cartridges, enhancing ballistic performance and ensuring consistent shot patterns. Additionally, this tool allows for the secure closure of 12/70 shells using a crimped fold closure instead of the traditional star crimp, providing a tighter seal and improved pressure containment during firing.
Manufactured with durable materials suitable for metallic and semi-metallic reloading processes, this mouthpiece is an essential component for precision reloaders seeking to maximize the efficiency and reliability of their 12 gauge shotgun loads. Its ergonomic design facilitates easy handling and precise application, making it ideal for hunters, competitive shooters, and ballistic enthusiasts focused on achieving optimal cartridge performance.