Winchester M193 5.56 NATO 55gr FMJ Ammo - 600 Rounds Value Pack

The Winchester USA M193 5.56x45mm NATO ammunition delivers consistent performance for high-volume shooting at an exceptional value. This bulk pack contains 600 rounds (4 boxes of 150) of 55-grain full metal jacket ammunition that meets M193 military specifications for reliable function in AR-15 platforms and other 5.56 NATO chambered rifles.

What Makes This Different

Winchester's M193 specification ensures this ammunition meets strict military standards for velocity, pressure, and reliability. The 55-grain FMJ projectile achieves approximately 3,240 fps muzzle velocity from a 20-inch barrel, matching the ballistic performance of military-issue M193 ball ammunition. Unlike commercial .223 loads, this 5.56 NATO specification ammunition generates higher chamber pressures for consistent cycling in gas-operated rifles.

Key Features

• 600 rounds total in convenient 4-box value pack configuration
• 55-grain full metal jacket bullets with lead core construction
• Boxer-primed brass cases suitable for reloading
• M193 military specification for consistent ballistic performance
• 3,240 fps muzzle velocity from 20-inch barrel
• Compatible with all 5.56 NATO and .223 Remington chambered rifles
• Non-corrosive primers and propellant for reliable ignition

This ammunition performs reliably across temperature extremes and extended firing sessions. The M193 specification ensures consistent point of impact for training applications, while the FMJ construction provides reliable feeding and extraction in semi-automatic rifles. Range officers and competitive shooters appreciate the consistent velocities that translate to predictable trajectories at extended distances.

Technical Specs

• Caliber: 5.56x45mm NATO
• Bullet Weight: 55 grains
• Bullet Type: Full Metal Jacket (FMJ)
• Muzzle Velocity: 3,240 fps (20-inch barrel)
• Muzzle Energy: 1,282 ft-lbs
• Case Material: Boxer-primed brass
• Primer Type: Non-corrosive
• Quantity: 600 rounds (4 boxes of 150)
• Manufactured: USA

This value pack provides serious shooters with match-grade consistency at training ammunition prices. The bulk packaging reduces per-round costs while maintaining Winchester's quality control standards that have supplied military and law enforcement agencies for decades.