RCBS Neck Expander Plug .358 Cal - 39879

This RCBS Neck Expander Plug is a replacement component for use with RCBS Neck Expander Dies, designed for .358 caliber cartridges. It performs neck expansion and case mouth flaring in a single step, making it essential for reloading cast bullets. The plug is compatible with various caliber dimensions and streamlines the reloading process.