Hornady Lock-N-Load AP Progressive Press Shell Plate - #1 Size

The Hornady Lock-N-Load AP Progressive Press Shell Plate #1 Size is a precision-engineered component designed for reloaders running the Hornady Lock-N-Load AP progressive reloading press platform. This shell plate enables fast, repeatable cartridge seating and indexing across multiple reloading stations, reducing setup time when moving between different ammunition loads or returning to previously loaded calibers.

The #1 Size shell plate accommodates a specific range of cartridge head sizes and diameters. Built from durable material and manufactured to tight tolerances, the plate maintains consistent positioning across reloading cycles—critical for safety and accuracy in handloaded ammunition. The Lock-N-Load quick-change design allows operators to swap calibers without disassembling the press, preserving established die alignment and reducing caliber transition time from minutes to seconds. This shell plate is also compatible with older Hornady Projector Press models, extending compatibility across the Hornady reloading press family.

Serious handloaders—whether precision rifle shooters, competitive pistol competitors, or high-volume ammunition producers—rely on standardized shell plates to ensure repeatable results and minimize operator error during the reloading sequence. By matching your specific cartridge to the correct shell plate size, you guarantee proper case advancement and consistent station timing, which directly impacts safety and final ammunition reliability. Hornady shell plates are specified by cartridge family and head diameter, so verify your caliber's requirements before ordering.

For operators maintaining multiple reloading setups or switching frequently between rifle and pistol calibers, investing in dedicated shell plates for each primary load eliminates the need to reconfigure the press platform each session. Hornady's lock-and-load system has become the standard for semi-automated reloading, balancing speed with the precision required for safe, consistent ammunition production.