The L.E. Wilson Expanding Mandrel for .270 caliber (brand part no. EXPM-270C) is designed to be used on new brass cases to prepare them for the seating operation. Reloaders have increasingly seen the need to run new brass cases over an expanding mandrel because bulk-shipped new brass is often damaged in transit; this die gives every case a consistent neck diameter before it’s ever fired. With correct neck tension established up front, handloaders can expect more consistent seating depth and a more uniform shot. This listing includes one mandrel, with additional mandrels for other diameters sold separately.

Key Specifications

• Sized for .270 caliber (.276-inch) case necks.
• Designed for use on new, unfired brass to establish consistent neck diameter.
• Fits a standard 7/8-inch reloading press.
• Built with stainless steel parts for a long-lasting finish.
• Includes a cut-out viewing window in the die to confirm case alignment and depth.
• Includes one mandrel; additional mandrels are sold separately.

Frequently Asked Questions

Why would I expand the neck on new brass? New brass shipped in bulk is often slightly damaged or inconsistent from handling; running it over this mandrel establishes a uniform neck diameter and consistent neck tension before the first firing.

Does this die expand the neck to bullet diameter? No, the die only expands the neck to slightly under bullet diameter, leaving the correct amount of neck tension for seating.

Buy the L.E. Wilson Expanding Mandrel, .270 Caliber

Give your new .270-caliber brass a consistent neck diameter before its first firing. Order this L.E. Wilson mandrel from L.E. Wilson‘s reloading tools lineup through our Lubbock, Texas gun shop for fast, direct shipping to your door.