Winchester White Box USA 5.56x45mm NATO 55 Grain FMJ Ammo

Winchester White Box USA 5.56x45mm 55 Grain FMJ – Bulk Ammo Built for Performance

Step up your range day with Winchester White Box USA 5.56x45mm NATO 55 Grain Full Metal Jacket Ammo – the go-to choice for serious shooters, tactical trainers, and competition enthusiasts. Backed by over 150 years of American manufacturing excellence, this ammo is known for its superior reliability, tight grouping, and clean-burning performance.

Each 55 grain FMJ round is designed for positive function and consistent accuracy, with a non-expanding projectile that’s ideal for target shooting, tactical training, and high-volume plinking. With a blazing muzzle velocity of 3,270 FPS, you’ll get flat trajectories and punchy downrange energy.

This bulk 1000-round case (50 boxes of 20) features boxer-primed, non-corrosive, reloadable brass casings – built to perform in any AR-15, M4, or 5.56/.223-compatible platform. Whether you’re stocking up or planning an extended session, Winchester’s White Box delivers military-spec quality at civilian-friendly prices.

Key Features:

• Caliber: 5.56x45mm NATO

• Bullet Weight: 55 Grain

• Bullet Type: Full Metal Jacket (FMJ)

• Muzzle Velocity: 3,270 FPS

• Muzzle Energy: 1,306 ft-lbs

• Casing: Boxer-primed, reloadable brass

• Configuration: 1000 rounds (50 boxes of 20)

• Made in the USA

• Perfect For: Tactical drills, target shooting, range practice, and bulk storage

Why Buy Winchester White Box 5.56?

• Legendary Winchester reliability

• High-velocity performance with clean burning powder

• Ideal for semi-auto rifles like the AR-15

• Affordable 1000-round bulk option

• Consistent ballistics and positive cycling

• Reloadable brass = long-term value