L.E. Wilson Expanding Mandrel Sizing Die 7mm .283" - EXP-7MD

The L.E. Wilson Expanding Mandrel Die prepares new brass for optimal bullet seating by expanding the case neck to slightly under bullet diameter, achieving uniform neck tension and consistent seating depth. Constructed from stainless steel for durability, this die features interchangeable mandrels (sold separately) to accommodate various calibers. Designed for precision reloaders seeking improved brass preparation and shot-to-shot consistency.