RCBS Shell Plates provide quick change loading versatility. For use with the RCBS 4x4 Auto and 4x4 Press only. Will not work with the Pro 2000, AmmoMaster Auto or any Piggyback press. All RCBS reloading equipment is made in the U.S., carefully inspected before shipment, and 100% reliable. Available in the following calibers: .264 Winchester Mag, 6.5 Remington Mag, 7mm Remington Mag.