Winchester USA Features The Winchester USA .223 Rem load pairs a 55 grain Full Metal Jacket bullet with consistent propellant charges for reliable cycling across a wide range of semi-automatic and bolt action rifles. A muzzle velocity of 3240 fps delivers a flat trajectory well suited to range shooting and training at varied distances. The 1282 ft lbs of muzzle energy reflects a load built for recreational shooting rather than specialized hunting or defensive applications. This FMJ bullet design resists deformation during feeding helping maintain reliable function in rifles that are sensitive to bullet profile. Winchester built this USA line specifically for recreational shooters who put significant round counts through their rifles at the range. Packaged as a 600-round case lot this ammunition minimizes trips back to the shelf during extended range sessions or training classes. Consistent quality control across each load helps shooters maintain a predictable zero without unexpected shifts in point of impact. For AR-platform and bolt action .223 Rem owners looking for dependable affordable ammunition in volume this Winchester USA load is built for exactly that purpose. Winchester USA Specifications Manufacturer: Winchester Model: USA Caliber: .223 Rem Bullet Weight: 55 gr Bullet Type: Full Metal Jacket Rounds Per Box: 150 Muzzle Velocity: 3240 fps Muzzle Energy: 1282 ft lbs Available At: GrabAGun