The Auto Disk powder measure is primarily designed for reloading pistol cartridges, but it can also be used for reloading rifle with the addition of the Double Disk kit and Rifle charging die.
The Perfect powder measure is at its best when reloading rifle cases, but it will also work for pistol. Many prefer the Auto Disk for most reloading, unless reloading a small quantity of rifle cartridges, or when you want to try a variety of charges. The Perfect powder measure is easier to change the quantity of powder to be thrown, the Auto Disk is better for mass production.
