Lee Auto-Disk Powder Measure (90429)The Lee Auto Disk Powder Measure automatically dispense charges more uniformly than any other powder measure. The case itself actuates the measure as the neck is being flared. The measure is actuated during the presses maximum mechanical advantage. This assures the smooth, even action of the measure. Built in baffle and precisely molded, glass reinforced charge disks contribute to the charge uniformity. Four disks included, with 6 cavities per disk