Aguila 1E556126 5.56 NATO 55gr FMJ BT Ammo - 1200 Rounds

The Aguila 1E556126 delivers consistent performance for high-volume shooting with 55-grain full metal jacket boat tail bullets in the versatile 5.56x45mm NATO chambering. This bulk case contains 1,200 rounds packaged in four boxes of 300 rounds each, providing exceptional value for training sessions and extended range time.

What Makes This Different

Aguila's precision manufacturing process ensures consistent powder charges and bullet seating depth across every round. The boat tail design reduces drag and improves ballistic coefficient compared to flat-base bullets, delivering flatter trajectories and enhanced accuracy at extended ranges. Mexican-manufactured under strict quality control standards, this ammunition meets NATO specifications for reliable function in both 5.56 NATO and .223 Remington chambers.

Key Features

• 55-grain full metal jacket boat tail bullets for superior ballistic performance
• NATO-spec brass cases with consistent wall thickness and primer pockets
• Muzzle velocity of approximately 3,240 fps from 20-inch barrel
• Bulk packaging of 1,200 rounds (4 boxes of 300) for cost-effective training
• Compatible with all 5.56 NATO and .223 Remington chambered rifles
• Non-corrosive primers and clean-burning powder formulation
• Boxer-primed brass cases suitable for reloading applications

Range testing demonstrates reliable cycling in AR-15 platforms, bolt-action rifles, and semi-automatic sporting rifles. The 55-grain weight provides optimal performance in standard 1:9 and 1:7 twist rate barrels commonly found in modern rifles. Clean powder burn characteristics minimize fouling buildup during extended shooting sessions, while consistent velocities support predictable point of impact shifts.

Technical Specs

• Caliber: 5.56x45mm NATO
• Bullet Weight: 55 grains
• Bullet Type: Full Metal Jacket Boat Tail (FMJ BT)
• Muzzle Velocity: ~3,240 fps (20" barrel)
• Muzzle Energy: ~1,282 ft-lbs
• Case Material: Boxer-primed brass
• Primer Type: Non-corrosive
• Quantity: 1,200 rounds (4 boxes of 300)
• Manufacturer: Aguila Ammunition (Mexico)

This bulk ammunition package addresses the needs of serious shooters who demand reliable performance without premium pricing. The combination of proven 55-grain FMJ BT design and Aguila's manufacturing consistency makes this an intelligent choice for stocking up on training ammunition.