Underwood Ammo .357 Sig 115 Grain Jacketed Hollow Point Nickel Plated Brass Cased Pistol Ammo 20 Rounds. Specifications for Underwood Ammo .357 Sig 115 Grain Jacketed Hollow Point Nickel Plated Brass Cased Pistol Ammunition: Manufacturer: Underwood Ammo Caliber: .357 SIG Number of Rounds: 20 Bullet Type: Jacketed Hollow Point (JHP) Bullet Weight: 115 grain Cartridge Case Material: Nickel Plated Brass Muzzle Velocity: 1550 ft/s Muzzle Energy: 614 ft-lbs Application: Hunting Package Type: Box Primer Style: Centerfire Lead Free: No Dimensions: 1.35 X 3.25 X 4.95 in Width: 3.25 in Package Contents: Underwood Ammo .357 Sig 115 Grain Jacketed Hollow Point Nickel Plated Brass Cased Pistol Ammo Underwood Ammo 118: .357 Sig 115 Grain Jacketed Hollow Point Nickel Plated Brass Cased Pistol Ammo 20 Rounds