Underwood Ammo .460 Rowland 230 Grain Jacketed Hollow Point Nickel Plated Brass Cased Pistol Ammo 20 Rounds. Specifications for Underwood Ammo .460 Rowland 230 Grain Jacketed Hollow Point Nickel Plated Brass Cased Pistol Ammunition: Manufacturer: Underwood Ammo Caliber: .460 Rowland Number of Rounds: 20 Bullet Type: Jacketed Hollow Point (JHP) Bullet Weight: 230 grain Cartridge Case Material: Nickel Plated Brass Muzzle Velocity: 1400 ft/s Muzzle Energy: 1001 ft-lbs Application: Hunting Package Type: Box Primer Style: Centerfire Lead Free: No Package Contents: Underwood Ammo .460 Rowland 230 Grain Jacketed Hollow Point Nickel Plated Brass Cased Pistol Ammo Underwood Ammo 625: .460 Rowland 230 Grain Jacketed Hollow Point Nickel Plated Brass Cased Pistol Ammo 20 Rounds