Lee Precision .223 Remington decapping expander

Lee Precision .223 Remington Expander Decapper

Expander and decapping assembly, genuine Lee Precision replacement part cataloged with code SE2172 and described by Lee as 223 EZ X Expander/Decapper. It combines the neck expander and the pin that ejects the spent primer into a single unit.

In the sizing die, the downward stroke of the case causes the pin to push out the spent primer, while on the upward stroke, the expander returns the neck to the correct diameter for bullet seating. It is the most exposed component of the die: the decapping pin can bend or break when encountering an off-center primer, a crimped primer pocket, or an off-center flash hole. Replacing the assembly restores the die to working order without affecting the sizing.

Main features

• Neck expander assembly with decapping pin
• Lee EZ X version
• Caliber: .223 Remington

Recommended use

Replacement for Lee sizing dies in .223 Remington. Compare the code and the expander diameter with the removed part before installation.

Package contents

• 1 expander/decapper assembly

The die is not included.

Manufacturer code: SE2172