First Breach Precision Series 9x19mm Ammunition 124 Grain Full Metal Jacket C220 Brass Case Pistol Ammo 1000 Rounds. FB USA 9x19mm Headstamp. Specifications for First Breach Precision Series 9x19mm Ammunition 124 Grain Full Metal Jacket C220 Brass Case Pistol Ammunition: Manufacturer: First Breach Caliber: 9mm Luger Number of Rounds: 1000 Bullet Type: Full Metal Jacket (FMJ) Bullet Weight: 124 grain Cartridge Case Material: Brass Muzzle Velocity: 1250 ft/s Package Type: Box Primer Style: Centerfire Package Contents: First Breach Precision Series 9x19mm Ammunition 124 Grain Full Metal Jacket C220 Brass Case Pistol Ammunition Loose rounds in sealed packaging First Breach 50003: Precision Series 9x19mm Ammunition 124 Grain Full Metal Jacket C220 Brass Case Pistol Ammo 1000 Rounds