The Redding Reloading Equipment 0.344 inches heat treated steel neck sizing bushing is a precision-engineered component designed for use in reloading applications. Constructed from heat-treated steel, this neck sizing bushing offers enhanced durability and resistance to wear, ensuring consistent performance over extended periods of use. The bushing's precise 0.344 inches diameter is optimized for accurate neck sizing, contributing to improved bullet alignment and overall cartridge uniformity. This component is compatible with a range of reloading presses and is an essential tool for reloaders seeking to achieve optimal precision and reliability in their ammunition production processes. The heat-treated steel features hand-polished sizing diameters with a surface hardness of RC 60-62, designed to minimize the effort required for sizing Redding neck sizing bushings are fully compatible with all redding bushing dies and seamlessly interchangeable with Wilson-style bushings, ensuring versatile and precise reloading performance