Upgrade your progressive press for smoother, faster brass handling with the Hornady Lock-N-Load AP Case Feed Retrofit Kit Subplate (398309)—a purpose-built component designed for reloaders who want to add or refresh case-feeding functionality on a Hornady Lock-N-Load AP (LnL AP) setup. If you’re building out a more efficient progressive loading workflow, the right subplate is the foundation that helps your case feeder interface correctly and consistently with the press, keeping your operation organized, repeatable, and ready for higher-volume sessions.
If you’re searching for a Hornady LnL AP case feeder retrofit kit, Hornady case feed subplate, Lock-N-Load AP case feeder parts, or the correct subplate for case feed conversion, the Hornady 398309 subplate is made for the job—helping you bring case feeding capability to compatible LnL AP press configurations.
What This Part Does in a Case-Feeding Setup
On progressive presses, case feeding is all about controlled movement: cases must enter the shellplate area at the right time, in the right position, with proper alignment so the press cycle stays smooth. The subplate plays a key role in that process by supporting and positioning the mechanisms that guide cases through the press.
This LnL AP Case Feed Retrofit Kit subplate is intended to integrate with Hornady’s case-feeding ecosystem and help ensure:
Proper alignment for case presentation into the press cycle
A stable, consistent interface between press and case feed components
A more streamlined workflow once case feeding is installed
Whether you’re adding case feeding for the first time or replacing a worn/incorrect part during maintenance, having the correct subplate helps keep your progressive loading system running as intended.
Designed for Hornady Lock-N-Load AP Compatibility
Hornady’s Lock-N-Load AP platform is popular because it balances speed, flexibility, and changeover efficiency. The Hornady 398309 is made specifically for the LnL AP case feeder retrofit context, helping reloaders keep their equipment within the manufacturer’s intended fit and configuration.
Because progressive press assemblies can vary depending on when they were produced, what upgrades have been added, and what accessories are installed, using the correct OEM part is a straightforward way to reduce guesswork and keep your system working predictably.
Why Case Feed Retrofits Matter for Progressive Reloading
Reloaders typically move to case feeding for one main reason: efficiency. A case feeder can reduce repetitive handling and help you keep attention where it matters—powder charging consistency, primer seating feel, and overall process control.
Adding or maintaining case feeding can help support:
Higher-volume loading sessions with less fatigue
More consistent rhythm from cycle to cycle
Cleaner workflow organization on the bench
Reduced interruptions caused by manual case placement
This subplate is part of what makes that upgrade possible in a way that matches the LnL AP design.
Ideal for Maintenance, Repairs, and Bench Optimization
Even the best reloading setups benefit from periodic refreshes—especially when your press sees a lot of use. This subplate is a solid fit for:
Reloaders adding a case feeder retrofit to an LnL AP
Replacing a subplate that’s damaged, worn, or mismatched
Restoring proper fit and alignment after disassembly or upgrades
Keeping spare OEM parts on hand for a high-use bench
If you’re troubleshooting inconsistent case presentation, alignment issues, or you’re simply rebuilding your progressive press system the right way, confirming correct subplate fit is often a key step.
Product Details
Why Choose the Hornady 398309 Subplate?
Because progressive reloading is all about consistency—and case feeding is one of the biggest workflow upgrades you can add to an LnL AP press. The Hornady Lock-N-Load AP Case Feed Retrofit Kit Subplate (398309) is a purpose-driven OEM component that supports proper case feed integration, helping you maintain a smooth, repeatable process and a more efficient bench setup.
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