The Hornady .380 ACP/9mm/9x21mm pistol expander die is a precision-engineered component designed for use in reloading presses. This expander die is specifically tailored to accommodate .380 ACP, 9mm and 9x21mm pistol cartridges, ensuring optimal performance and reliability during the reloading process. Constructed from high-grade steel, the expander die offers exceptional durability and resistance to wear, making it suitable for high-volume reloading operations. The die features a precisely machined expander plug that uniformly expands the case mouth, facilitating the smooth seating of bullets and enhancing overall cartridge consistency. The Hornady expander die is compatible with standard 7/8-14 threaded presses, providing seamless integration into existing reloading setups. Its user-friendly design allows for straightforward installation and adjustment, enabling reloaders to achieve precise case expansion with minimal effort. This expander die is an essential tool for reloaders seeking to maintain the highest standards of accuracy and performance in their ammunition. Its robust construction and precise engineering make it a reliable choice for both novice and experienced reloaders.

These dies uniformly apply a subtle bell or flare to the mouths of straight-walled rifle or pistol cases, optimizing them for seamless powder charging and bullet seating
The Hornady Sure-Loc lock rings encircle the die, exerting uniform pressure to secure the ring
The locking screw fastens the ring without thread contact, preventing potential damage from pliers

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