Winchester M855 SS109 5.56x45mm NATO Ammo 62 Grain Penetrator Full Metal Jacket Case of 1000 (2 Boxes of 500)

Overview

This Winchester 5.56x45mm NATO ammunition features a 62-grain Penetrator Full Metal Jacket (FMJ) bullet. Designed to meet military specifications, each projectile includes a steel core and a characteristic green tip, engineered to provide consistent velocity and enhanced penetration for intermediate-range engagements. The total case contains 1,000 rounds, conveniently divided into two boxes of 500 rounds each. The ammunition is manufactured with brass casings, making them reloadable, and utilizes centerfire primers. It is designed for reliable performance and uniform quality, ensuring consistent function in semi-automatic rifles, particularly those utilizing the AR platform. These cartridges have a muzzle velocity of 3,060 fps and a muzzle energy of 1,289 ft-lbs. This ammunition is optimized for training, qualification cycles, and zero verification. Users should note that this is a 5.56x45mm NATO round, which operates at higher pressures than the .223 Remington cartridge. It is not recommended for use in firearms chambered specifically for .223 Remington.

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