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 making it a strong choice for reloaders who collect once fired brass from multiple sources. The micrometer dead length bullet seating die allows precise repeatable seating depth adjustments without disturbing the crimp which helps maintain consistent overall cartridge length from round to round. A separate factory crimp die finishes each round with a uniform crimp for reliable feeding and consistent neck tension. Together these three dies cover the full resizing and seating process for .223 Remington and 5.56x45mm NATO ammunition. Color coded factory installed breech lock quick change bushings let reloaders swap dies in seconds on presses equipped with the Breech Lock system cutting down on setup time between calibers or die changes. A universal shell holder is included so the set is ready to use without buying a separate holder and the bundled powder dipper and instructions with load data give new reloaders a complete starting reference. Reloaders using 5.56 NATO brass should follow load data published specifically for that cartridge from a trusted powder manufacturer. This Lee Precision die set is a practical well-rounded choice for anyone loading high volumes of .223/5.56 ammunition. Lee Precision Micrometer Breech Lock 3-Die Set Specifications Manufacturer: Lee Precision Model: Micrometer Breech Lock 3-Die Set Caliber: .223 Rem / .224 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