Frontier 5.56 NATO 55gr FM193 FMJ – 150 Rounds

Frontier Cartridge 5.56 NATO 55-grain FM193 delivers reliable ball ammunition manufactured to military M193 specifications. Built with a full metal jacket projectile and loaded in Lake City brass, this round offers consistent performance for high-volume range training and plinking. The FM193 designation indicates compatibility with both 5.56 NATO and .223 Remington chambers, though the higher chamber pressure of 5.56 NATO makes it best suited for rifles clearly marked for 5.56 NATO.

Loaded by Hornady at the Lake City Army Ammunition Plant, these rounds use military-grade components including boxer primers for reliable ignition and reloadable brass cases. Available in 150-round bulk boxes with a case quantity of 1,200 rounds for extended range sessions without frequent restocking.

• Caliber: 5.56 NATO
• Bullet Weight: 55 grains
• Bullet Style: Full Metal Jacket (FM193)
• Muzzle Velocity: ~3,240 fps (20" barrel)
• Box Count: 150 rounds
• Case Count: 1,200 rounds
• Case Type: Boxer-primed brass (Lake City)
• Primer: Boxer
• Use: Range training, target shooting