This is a replacement 12 breech lock shell plate manufactured by Lee Precision for use in progressive reloading operations. It is intended for installation in compatible Lee Auto Breech Lock Pro progressive presses and is labeled for the Lee Pro 4000 series. The plate is a dedicated component intended to support the mechanical indexing and cartridge handling functions of a Lee Auto Breech Lock Pro Progressive Press. Verify cartridge compatibility and fitment prior to use.
Key Specifications
- The manufacturer is Lee Precision.
- The product designation is Lee Pro 4000 Shell Plate 12.
- An alternate label on the item is 12 Breech Lock Pro Shell Plate.
- The part type is a shell plate for progressive reloading presses.
- It is designed to work with the Lee Auto Breech Lock Pro Progressive Press (Item LEE90900).
- The listed weight is 0.26.
- The listed shipping weight is 0.26.
- The catalog category is Other Reloading Equipment.
This replacement 12 shell plate provides a straightforward way to maintain or reconfigure a Lee Auto Breech Lock Pro Progressive Press for compatible cartridge operations. Built to the fit and indexing form expected for Breech Lock Pro components, it serves reloaders who require dependable press-level parts for production or hobby reloading workflows. Verify the cartridge compatibility for your specific reloading setup before installing or using this plate.









