Federal Premium Ballistic Clean .223 55 Grain RHT Brass Cased Centerfire Rifle Ammo 20 Rounds. All BallistiClean loads feature a copper-plated primer and an "NT" (non-toxic) head stamp to clearly identify BallistiClean as a training round at a glance eliminating confusion with duty rounds. Specifications for Federal Premium Ballistic Clean .223 55 Grain 3450 ft/s RHT Brass Cased Centerfire Rifle Ammunition: Manufacturer: Federal Caliber: .223 Remington Number of Rounds: 20 Bullet Type: Frangible Bullet Weight: 55 grain Cartridge Case Material: Brass Muzzle Velocity: 3450 ft/s Muzzle Energy: 1110 ft-lbs Application: Training Package Type: Box Primer Style: Centerfire Lead Free: Yes Package Contents: Federal Premium Ballistic Clean .223 55 Grain 3450 ft/s RHT Brass Cased Centerfire Rifle Ammunition What is Federal Premium Ballistic Clean .223 55 Grain 3450 ft/s RHT Brass Cased Centerfire Rifle Ammunition good for? The manufacturer thinks that it is best for training.Federal BC223NT5: Premium Ballistic Clean .223 55 Grain RHT Brass Cased Centerfire Rifle Ammo 20 Rounds