Challenger III Reloading Press. The "O" frame press by design is the strongest and by far the most popular style press. The larger than average 4" opening allows for maximum hand clearance. Priming is a dream with the Lee Lever Prime System. Best of all, it includes the Breech Lock Quick Change die system. Change dies instantly with a twist of the wrist, and you never have to re-adjust your die. Ergonomic lever with priming position improved, no stooping at the bottom of the stroke. Through ram primer disposal, spent primers fall through the ram and collect in a convenient emptying tube. Keeps the dirt and grime off the press frame and ram. Lee 223 Breech Lock 3-Die Set includes colored Smart Lock bushings for easy die identification, Full Length Sizing Die, Easy Adjust Dead Length Bullet Seating Die, Factory Crimp Die, Universal Shell Holder, Powder Dipper and Instructions/Load Data. This die set may be used to load 5.56 NATO (5.56 x 45mm) brass. You must follow load data published for the 5.56 NATO, available from your favorite powder manufacturer. Challenger III, celebrating forty years. Third generation Challenger features everything that made the Challenger the world's bestselling single station press. Plus, we have added an ergonomically formed lever allowing even more comfortable operation with no more stooping at the bottom of stroke. Spent primers fall through the ram and collect in a convenient tube. Keeps dirt and grime off the frame and ram, and your workspace clean. Priming position is moved up front where the action is. And the LEE LEVER PRIME SYSTEM is still instant change with no tools. Say goodbye to time-consuming die adjustments, BREECH LOCK QUICK CHANGE DIE SYSTEM is built in. Change dies instantly with a twist of the wrist; you'll never have to re-adjust your die. Works with all brands of dies. Same unbreakable “O” frame design, all steel linkage, and adjustable length lever. This same press would cost you more than twice as much from other manufacturers, and that's without all of the Challenger's features.