The Area 419 ZERO Universal Decapper (Universal because it'll work with any common press, or any common cartridge) has a spring loaded decapping pin, with replaceable heads, so you can send primers straight to the trash bin with no headaches, no drawback, and a satisfying "ping". The body of the die is aluminum, with all of the moving parts being of steel construction. This die will work with cases up to and including 338 Lapua length/diameter with no need for different inserts, and is compatible with any common press or shellholder. Note: Not for use with cartridges 20 cal or smaller.