First Breach Rifle Bullets .223 62 Grain Full Metal Jacket Boattail 100 Bullets. First Breach smelts its own lead ingot into lead wire which is precisely cut into projectile cores for our FMJ bullets. First Breach also produces its own case cups and projectile jacket cups from brass strip in-house. Specifications for First Breach Rifle Bullets .223 62 Grain Full Metal Jacket Boattail: Manufacturer: First Breach Gun Type: Rifle Bullet Type: Full Metal Jacket (FMJ) Caliber: .223 Remington Cartridge Type: Brass Bullet Weight: 62 grain Projectile Caliber: .223 Caliber Package Contents: First Breach Rifle Bullets .223 62 Grain Full Metal Jacket Boattail First Breach 30011: Rifle Bullets .223 62 Grain Full Metal Jacket Boattail 100 Bullets