Ultramax .454 Casull 325 grain Jacketed Hollow Cavity Pistol Ammo 20 Rounds. 454 Casull 325 grain Jacketed Hollow Cavity Pistol Ammunition: Manufacturer: Ultramax Caliber: .454 Casull Number of Rounds: 20 Bullet Type: Jacketed Hollow Cavity (JHC) Bullet Weight: 325 grain Cartridge Case Material: Brass Application: Target Package Type: Box Primer Style: Centerfire Package Contents: Ultramax .454 Casull 325 grain Jacketed Hollow Cavity Pistol Ammunition What is Ultramax .454 Casull 325 grain Jacketed Hollow Cavity Pistol Ammunition good for? The manufacturer suggests that it is best for target.Ultramax ULT-454C-1-N: .454 Casull 325 grain Jacketed Hollow Cavity Pistol Ammo 20 Rounds