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5.56x45 - 62 Grain FMJ M855 - Winchester - 800 Rounds


(59.4¢ per round)

54 In Stock


Quantity - 200 rounds per box; 4 boxes per case
Manufacturer - Winchester
Bullets - 62 grain full metal jacket (FMJ) M855
Casings - Boxer-primed brass
Manufacturer Winchester
Condition New
Bullet Weight 62 Grain
Bullet Type Penetrator
Ammo Casing Brass
Quantity 800
Ammo Caliber 5.56x45mm
Manufacturer SKU WM855200
Primer Type Boxer
Muzzle Velocity (fps) 3060
Muzzle Energy (ft lbs) 1289
Attracts Magnet Yes
Cost Per Round 59.4¢ per round
Use Type
Range Training
Self Defense
See More Information
We love Winchester’s 5.56x45 M855 ammunition. Not only is this a great case of ammo to have on hand for plinking and target practice – it’s also useful for home defense thanks to its special full metal jacket projectile.

This round’s 62 grain FMJ is known as a “penetrator.” That’s because the front half of its core is made of hard steel instead of soft lead, which makes the bullet resilient enough to penetrate soft tissue to a depth of up to 20”. The penetrator bullet also does a much better job of puncturing sheet metal, and it may even split in half as it penetrates soft tissue so it can track two wound channels through its target.

The penetrator’s green painted tip indicates that the bullet contains steel. It will attract a magnet, so plan which ranges you visit accordingly. Its slightly heavier bullet also means M855 ammo provides the best accuracy in conjunction with a 1:8” or 1:9” barrel. (A 1:7” twist is acceptable, just not ideal.)

This ammo will function correctly in any AR-15 or other 5.56 firearm. Its brass cases are military-style in that they were not polished after being heat-treated for greater strength. Non-corrosive, Boxer-primed and fully reloadable!
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