L.E. Wilson Expanding Die Mandrel 284 Caliber, 7mm (283 Diameter)

Overview

The L.E. Wilson Expanding Die Mandrel for .284 caliber (7mm) is designed to process new brass cases, ensuring consistent neck diameters and proper neck tension before the first firing. It is particularly useful for preparing new bulk brass that may have suffered minor damage during shipping. The die includes one mandrel, features stainless steel construction for durability, and uses a standard 7/8"-14 thread for compatibility with most reloading presses. It is designed to expand the neck to slightly under the bullet diameter.

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