L.E. Wilson Expanding Mandrel Die - EXP-DIE

This expanding mandrel die is designed to prepare brass cases for optimal bullet seating by expanding the case neck to slightly under bullet diameter, ensuring uniform neck tension and consistent seating depth. Features interchangeable mandrels (sold separately) to accommodate various calibers and is constructed from stainless steel for durability. An essential tool for precision reloaders seeking repeatable, high-quality ammunition.