Winchester USA Features The Winchester USA line delivers a 5.56 cartridge loaded with a 55 grain full metal jacket bullet a proven combination for training plinking and recreational shooting. This full metal jacket design feeds reliably across a wide range of semi-automatic and bolt action rifles chambered in 5.56 or .223 Rem reducing the chance of feeding issues during extended range sessions. Winchester builds this load to consistent quality standards giving shooters dependable function and predictable point of impact round after round. The 55 grain bullet weight is a common well-balanced choice for general-purpose shooting striking a reasonable trade-off between velocity and recoil. This listing represents a 600 round supply giving shooters a substantial amount of ammunition for extended range days training courses or stocking up ahead of a busy shooting season. Brass cased construction supports reloading for shooters who want to recover and reuse spent casings after firing. Winchester s reputation for consistent manufacturing makes this USA line a dependable choice for shooters who prioritize reliability over premium features in a bulk training load. For shooters who go through a high volume of 5.56 ammunition this Winchester USA load offers a dependable no-frills option for the range. Winchester USA Specifications Manufacturer: Winchester Model: USA Caliber: 5.56 Bullet Weight: 55 Grains Bullet Type: Full Metal Jacket Rounds Per Box: 150 Available At: GrabAGun