Winchester M193 5.56 NATO 55gr FMJ – 20 Rounds

Winchester M193 loads a 55-grain full metal jacket projectile to the original M193 military specification, delivering reliable performance in carbines and rifles chambered for 5.56 NATO or .223 Remington. This is a proven ball round designed for training, high-volume shooting, and general-purpose use, with consistent velocities and clean feeding across a wide range of AR-15 and M16 pattern firearms.

Loaded in boxer-primed brass cases suitable for reloading, Winchester M193 is available in 20-round boxes and 1000-round cases. The 55-grain FMJ bullet is optimized for rifles with 1:9 or faster twist rates and performs best in barrels 16" or longer. This is not a +P or overpressure load, but like all 5.56 NATO ammunition, it operates at higher chamber pressures than .223 Remington and should only be fired in firearms marked 5.56 NATO or 5.56/.223.

• Caliber: 5.56 NATO
• Bullet Weight: 55 grains
• Bullet Style: Full Metal Jacket (FMJ)
• Muzzle Velocity: ~3,240 fps (20" barrel)
• Box Count: 20 rounds
• Case Count: 1000 rounds
• Case Type: Boxer-primed brass
• Use: Training, target shooting, general purpose