Lee Precision EZ X Expander decapping die 7mm-08 and 284 Winchester

Lee Precision EZ X Expander 7MM/08 – 7mm-08 Remington

The Lee Precision EZ X Expander is the decapping-expander rod that works inside Lee full-length resizing dies: in a single press stroke, it removes the spent primer and expands the case neck to the necessary size for bullet seating. This version, designated by Lee as EZ X EXP 7MM/08, is intended for 7mm-08 Remington, 7x57 Mauser, 7mm WSM, 284 Winchester, and 7-30 Waters; it is the replacement part to order when the decapping pin bends or breaks, a common occurrence with cases featuring crimped primers.

It is a single steel rod: the tip acts as the decapping pin, while the intermediate bulge—the .283" expander ball—internally resizes the neck as the case exits the die. The total length stated by Lee is 3.370". In the exploded view of Lee full-length dies, the rod is held in the die body by the decapper clamp (code SD2151) and the O-ring (code SD2153), both of which are separate spare parts.

Main features

• Lee designation: EZ X EXP 7MM/08
• Expander diameter: .283"
• Total length: 3.370"
• Dual function: neck expansion and decapping in a single operation
• Quantity recommended by Lee: 1 piece per resizing die
• Calibers indicated by Lee: 7mm-08 Remington, 7x57 Mauser, 7mm WSM, 284 Winchester, 7-30 Waters

Recommended use

Replacement for Lee full-length resizing dies in 7mm-08 Remington, 7x57 Mauser, 7mm WSM, 284 Winchester, and 7-30 Waters. Lee lists it as a replacement for the 7mm/08 Pacesetter set (code 90537) and 7x57 Mauser Pacesetter set (code 90541). The rod is removed from the die body by loosening the decapper clamp and must be reinstalled maintaining alignment with the case flash hole.

Package contents

The spare part is supplied individually and includes only the decapping-expander rod. The die body, decapper clamp (SD2151), and O-ring (SD2153)—which Lee lists as separate spare parts—are not included.

Manufacturer code: SE2315