Hornady Lock-N-Load AP Progressive Press Shell Plate - #10 Size

The Hornady Lock-N-Load AP Progressive Press Shell Plate - #10 Size is an essential component for high-volume reloaders who demand precision and efficiency from their bench setup. This specific plate is engineered to integrate seamlessly with the Hornady Auto Progressive press, allowing operators to cycle through multiple stages with a single handle pull. Whether you are prepping duty ammunition or bulk training rounds, having the correct shell plate ensures reliable case feeding and consistent primer seating. It serves as the mechanical foundation for the caliber-specific conversion required to turn a standard press into a high-speed production tool.

Constructed from heat-treated steel, this shell plate is built to withstand the repetitive stress of thousands of reloading cycles without warping or losing dimensional integrity. The precision-machined grooves are designed to hold brass securely, preventing tilting or misalignment that can lead to crushed case mouths or inconsistent cartridge lengths. The #10 size is specifically optimized for the .223 Remington and 5.56 NATO family of cartridges, providing the exact tolerances needed for smooth indexing. Its low-profile design minimizes friction against the press sub-plate, ensuring that the indexing pawls can rotate the assembly with minimal resistance.

For the tactical marksman or competitive shooter, the Hornady Lock-N-Load AP Progressive Press Shell Plate - #10 Size offers a significant upgrade in output compared to standard single-stage equipment. This plate is compatible with any Hornady Lock-N-Load AP press and is a prerequisite for reloading popular intermediate rifle cartridges like .300 Blackout and .204 Ruger. Installation is straightforward, requiring only the removal of the center bolt to swap plates when transitioning between different caliber families. By maintaining a dedicated shell plate for your most-used calibers, you ensure that your reloading operation remains standardized and professional-grade.