Freedom Bucket Features For target shooting training exercises varmint hunting or any high-volume shooting situation the Freedom Bucket of Remington UMC Centerfire Rifle Ammo offers a great value without any compromise in quality or performance. UMC .223 ammo features reloadable brass cases KleanboreA(R) primers and clean burning powder. Freedom Bucket Specifications Bullet Weight: 55 gr Rounds Per Box: 300 Casing Material: Brass Application: Target Bullet Type: Full Metal Jacket Muzzle Energy: 1282 ft lbs Muzzle Velocity: 3240 fps