L.E. Wilson Expanding Mandrel Die 30 Cal 

L.E. Wilson Expanding Mandrel Die 30 Cal (.3075″)

The L.E. Wilson Expanding Mandrel Die 30 Cal (.3075″) includes an interchangeable mandrel sized for 30 Cal (.3075″ ≈ 7.81 mm) and features a die body cut-out for visual alignment of the case. Intended for new brass that may be damaged in shipping or handling, this die ensures a consistent neck diameter, improves bullet seating depth consistency and enhances accuracy. It fits standard 7/8-14 presses and features stainless-steel components for durability.

Key Features

Nominal Size: 30 Cal (.3075″ ≈ 7.81 mm)
Interchangeable Mandrel: Allows customization based on calibre
Visual Alignment Cut-out: Die body cut-out to view case alignment
New Brass Preparation: Designed specifically for new, unused brass
Construction Material: Stainless steel components for long life

All Technical Data

Calibre Size: 30 Cal (.3075″ ≈ 7.81 mm)
Usage: Expands case neck to just under bullet diameter for new brass preparation 
Threading: Standard 7/8-14 die thread (fits most presses) 
Material: Stainless steel parts for durability 
Included: Die body + one mandrel (30 Cal size)
Function: Prepare new brass for seating by establishing consistent neck diameter and tension.

Why Choose This Product?

The L.E. Wilson Expanding Mandrel Die 30 Cal (.3075″) offers precision case-neck preparation for serious reloaders working with new brass. By ensuring uniform neck diameter and improved seating consistency, it helps achieve better repeatability and performance. Its mandrel design and premium materials make it a standout choice for high-accuracy reloading workflows.