The Winchester USA Rifle Ammo in .223 Remington, 55 gr FMJ from the Winchester USA series delivers reliable, range-ready performance for shooters who want consistent accuracy and predictable ballistics, with a 55-grain full metal jacket bullet that produces a listed muzzle velocity of 3240 fps and muzzle energy of 1282 ft-lbsattributes that make it well suited for target shooting, drills, and practice sessions where flat trajectory and dependable feeding matter. With brass casings sourced from the United States and a design that feeds smoothly in AR-platform rifles and bolt actions, this FMJ load provides clean, economical shot-to-shot performance for marksmanship training and competition preparation. The cartridges non-expanding profile and standard .223 Rem caliber ensure compatibility with a wide range of rifles and optics setups, while the ORM-D classification and packaging considerations reflect safe transport and storage practices. If you run a busy range, train regularly, or build muscle memory with high-volume practice, these Winchester USA .223 rounds offer consistent velocities and reliable chambering to keep your sessions efficient and on target.