The Hornady 391913 is a precision mandrel designed for use with the Hornady Neck Turn Tool to support and properly align 6mm cartridge cases during neck turning. The .2395 inch mandrel size provides proper case alignment on the turning tool for consistent case support and more uniform neck turning results. this essential accessory ensures your cases are centered and stable while you cut.
By keeping the case centered and stable while you cut, this mandrel helps you achieve more consistent neck thickness for improved case prep and repeatable reloading results. It ensures uniform neck thickness for improved bullet-to-bore alignment, a critical factor in developing accurate, consistent ammunition. This genuine Hornady component is built to match Hornady case prep tooling for seamless integration into your reloading setup.
The Hornady 391913 mandrel is the perfect choice for handloaders who demand precision case preparation. Order this dedicated 6mm mandrel today and experience the difference that proper case alignment makes in your reloading accuracy and consistency.






