Threaded Gauge and Shell Holder Adapter for LEE Reloading Press

Threaded Shell Holder Adapter for Cases - Lee Precision

The Lee Precision Threaded Shell Holder Adapter for cases is a precision-engineered accessory designed to enhance the handling and processing of metallic and semi-metallic cartridge cases during critical reloading operations such as trimming and chamfering. This adapter seamlessly integrates with compatible manual depriming tools that accept Auto Prime style shell holders, including the Lee Auto Prime (model 90300) and the Lee Auto Bench Prime (model 90700).

Utilizing the threaded shell holder included within the gauge and shell holder assembly, this adapter transforms the Auto Prime platform into a stable and ergonomic workstation for case preparation. It ensures a secure grip on the cartridge case, facilitating rapid case changes and significantly improving workflow efficiency during case conditioning sessions. The robust threaded connection minimizes slippage and enhances concentricity, which is essential for maintaining dimensional consistency and precision in reloading.

Engineered for reloaders who demand accuracy, repeatability, and comfort at every stage of the reloading cycle, this adapter is an indispensable tool for optimizing case prep tasks.

Quick Guide to Using the Lee Precision Threaded Shell Holder Adapter for Cases

1. Gather Required Equipment:
   • Threaded shell holder adapter.
   • Compatible manual depriming tool such as the Lee Auto Prime (90300) or Lee Auto Bench Prime (90700).
   • Corresponding threaded shell holder (included with the gauge and shell holder set).
   • Additional case preparation tools including a case trimmer and chamfer/deburring tool.
2. Install the Adapter:
   • Remove any previously installed accessories from the manual depriming tool.
   • Mount the threaded adapter onto the designated holder on the tool, ensuring a tight, secure fit to prevent any play during operation.
3. Set Up the Threaded Shell Holder:
   • Thread the shell holder firmly into the adapter.
   • Verify that the shell holder is securely fastened to avoid any movement that could affect case concentricity.
4. Insert the Cartridge Case:
   • Place the case into the shell holder, ensuring it is centered and properly seated.
   • Make any necessary adjustments to guarantee a firm and stable grip on the case body.
5. Perform Trimming and Chamfering:
   • Use the Auto Prime or Bench Prime tool as a solid, stable base for case preparation.
   • Trim the case mouth to the precise length specified for the caliber using an appropriate case trimmer.
   • Chamfer and deburr the case mouth to remove any burrs, ensuring a smooth, uniform case neck for optimal bullet seating and consistent chambering.
6. Change Cases:
   • Release the prepared case from the shell holder.
   • Insert the next case and repeat the trimming and chamfering process for all remaining cases.
7. Cleaning and Storage:
   • After completing the session, thoroughly clean the adapter and shell holder to remove any metal shavings and debris.
   • Store all components in a dry, dust-free environment to prevent corrosion and extend tool longevity.

Pro Tip: Always consult your specific caliber’s technical specifications and the manufacturer’s guidelines prior to commencing case preparation. Adhering to recommended dimensions and procedures ensures optimal safety, precision, and performance in your reloading workflow.