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:
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Caliber: 5.56x45mm NATO
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Bullet Weight: 55 Grain
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Bullet Type: Full Metal Jacket (FMJ)
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Muzzle Velocity: 3,270 FPS
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Muzzle Energy: 1,306 ft-lbs
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Casing: Boxer-primed, reloadable brass
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Configuration: 1000 rounds (50 boxes of 20)
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Made in the USA
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Perfect For: Tactical drills, target shooting, range practice, and bulk storage
Why Buy Winchester White Box 5.56?
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Legendary Winchester reliability
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High-velocity performance with clean burning powder
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Ideal for semi-auto rifles like the AR-15
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Affordable 1000-round bulk option
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Consistent ballistics and positive cycling
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Reloadable brass = long-term value
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