Remington Disintegrator .223 Remington 55 Grain Lead-Free Jacketed Frangible Rifle Ammo 500 Rounds. Bullet construction is a high strength metal particle core sealed in a jacket that instantly breaks up when impacting steel targets or backstops leaving harmless metal particles and small pieces of thin jacket. Specifications for Remington Disintegrator .223 Remington 55 Grain Lead-Free Jacketed Frangible Rifle Ammunition: Manufacturer: Remington Caliber: .223 Remington Number of Rounds: 500 Bullet Type: Jacketed Frangible Bullet Weight: 55 grain Cartridge Case Material: Brass Muzzle Velocity: 3240 ft/s Muzzle Energy: 1282 ft-lbs Application: Varmint Target Predator Hog Deer Self-Defense Package Type: Box Primer Style: Centerfire Lead Free: Yes Package Contents: Remington Disintegrator .223 Remington 55 Grain Lead-Free Jacketed Frangible Rifle Ammunition What is Remington Disintegrator .223 Remington 55 Grain Lead-Free Jacketed Frangible Rifle Ammunition good for? The manufacturer suggests that it is suitable for self-defense deer hog predator target.Remington 23896: Disintegrator .223 Remington 55 Grain Lead-Free Jacketed Frangible Rifle Ammo 500 Rounds