Lee Precision Micrometer Breech Lock 3-Die Set Features The Lee Precision Micrometer Breech Lock 3-Die Set resizes mixed range brass back to factory specifications with its full length sizing die a useful feature for reloaders who gather once fired .300 Winchester Magnum brass from various sources. The micrometer dead length bullet seating die provides precise repeatable seating depth control so overall cartridge length stays consistent load after load. A dedicated factory crimp die applies uniform neck tension to finish each round for reliable feeding in bolt action rifles. Together these three dies handle the complete resizing and seating process for .300 Winchester Magnum ammunition. Factory installed color coded breech lock quick change bushings let reloaders swap dies quickly on presses fitted with the Breech Lock system which speeds up setup when switching between calibers. A universal shell holder is included so the set is ready to load straight out of the box without a separate purchase. The bundled powder dipper and instructions with load data give reloaders a reliable starting reference for working up safe accurate loads. This Lee Precision die set is a practical complete solution for handloaders building precision .300 Winchester Magnum ammunition. Lee Precision Micrometer Breech Lock 3-Die Set Specifications Manufacturer: Lee Precision Model: Micrometer Breech Lock 3-Die Set Caliber: .300 Win / .308 Die Set Type: 3-Die Breech Lock Set Includes: Full Length Sizing Die Micrometer Bullet Seating Die Factory Crimp Die Universal Shell Holder Powder Dipper Available At: GrabAGun