Lee's long charging die is for use with the auto-disk, pro auto-disk and auto-drum powder measure.Works with cases 1.760 to 2.620 inches long (223 rem to 300 win mag).Works the same as the pistol powder through expanding die, except it doesn't expand the case mouth.Rifle case expansion is done in the sizing die.Type: Rifle Charging DieCaliber: Multi-CaliberDie Type: Long CasesDie Series: Charging