Winchester M193 5.56 NATO 55gr FMJ Ammo - 20rd Box/50 Case

The Winchester M193 5.56x45mm NATO ammunition delivers military-specification performance for civilian shooters demanding consistent accuracy and reliability. This 55-grain full metal jacket load replicates the ballistics of standard M193 ball ammunition used by military forces worldwide.

What Makes This Different

Winchester's M193 load uses Lake City Army Ammunition Plant specifications, ensuring dimensional consistency and powder charges that meet NATO standards. The 55-grain FMJ bullet achieves a muzzle velocity of 3,240 fps from a 20-inch barrel, matching military performance requirements. Unlike commercial .223 Remington loads, this 5.56 NATO ammunition generates higher chamber pressures and delivers flatter trajectories at extended ranges.

Key Features

• 55-grain full metal jacket bullet with lead core construction
• Brass cases sized to NATO chamber specifications
• Boxer primers for reliable ignition in all weather conditions
• Muzzle velocity of 3,240 fps from 20-inch barrel
• Compatible with all 5.56 NATO and .223 Wylde chambers
• Bulk packaging: 1,000 rounds total (50 boxes of 20 rounds)
• Non-corrosive powder and primers for extended storage

This ammunition performs consistently across AR-15 platforms, delivering 2-3 MOA accuracy from quality barrels. The M193 load excels in training applications, competitive shooting, and general range use where shooters need affordable, reliable ammunition that cycles semi-automatic rifles smoothly. The full metal jacket construction penetrates barriers effectively while minimizing barrel fouling compared to soft-point alternatives.

Technical Specs

• Caliber: 5.56x45mm NATO
• Bullet weight: 55 grains
• Bullet type: Full Metal Jacket with lead core
• Muzzle velocity: 3,240 fps (20-inch barrel)
• Muzzle energy: 1,282 ft-lbs
• Case material: Reloadable brass
• Primer: Non-corrosive Boxer
• Packaging: 20 rounds per box, 50 boxes per case
• Manufacturer: Winchester Ammunition

Winchester's reputation for manufacturing consistency ensures each round meets the same specifications that military contracts demand. The bulk case format provides substantial cost savings for high-volume shooters while maintaining the quality control standards expected from a major ammunition manufacturer.