7mm x 57 Mauser Rifle 2 Die Set 7452290 The Lyman 7x57mm Mauser 2-Die Set is crafted on state of the art computer controlled equipment insuring that each die is perfectly dimensioned. Each rifle sizing die is vented to prevent trapped air that can damage cartridge cases, polished, heat treated for toughness and then receives a final micro-finish polish for extra smoothness. Lyman 2 die rifle sets are perfect for loading jacketed bullets in bottleneck cases. Includes full length sizing die and bullet seating die with a roll crimp. 7/8″-14 threads to fit all popular presses. Features: – Lyman Full Length Sizing Die (with One-Piece Decapping Unit) – Bullet Seating Die (with Roll Crimp) – Plastic Storage Case Specifications: – Material: Steel – Compatibility: 7x57mm Mauser