5.56×45 – 62 Grain FMJ M855 – Winchester – 500 Rounds


Manufacturer Winchester
Condition New
Bullet Weight 62 Grain
Bullet Type Penetrator
Ammo Casing Brass
Quantity 500
Ammo Caliber 5.56x45mm
Manufacturer SKU WM855500
Primer Type Boxer
Muzzle Velocity (fps) 3060
Muzzle Energy (ft lbs) 1289
Attracts Magnet Yes
UPC Barcode 020892229280
Cost Per Round 89.8¢ per round


AR-15 owners love M855 ammunition. These new production 5.56×45 cartridges by Winchester are a great pick for regular old plinking and target practice, but they do something a little extra special that suits them for self-defense as well!

Winchester M855 5.56mm 62 Grain Green 

The secret to the M855 round’s multifaceted performance is, quite naturally, its bullet. On the outside the M855 is identical to an FMJ – just a sheer layer of gilding metal that facilitates smooth feeding and low fouling per usual. But the green paint on the 62 grain bullet’s tip indicates that the frontal section of its core is made of steel.

Its steel “penetrator” tip is designed to help the M855 bullet punch through sheet metal at close to mid-range. But because this bullet has two separate metal components to its core, it is also capable of splitting in half as it enters soft tissue – tracking two separate wound channels as the result.

5.56 Nato M855 62 Gr. Fmj

However you choose to implement this round’s magnetic bullet, you’re sure to find great value in Winchester’s bulk ammo. These rounds’ brass cases are brand new. They are gray around their necks and shoulders, but that’s just the byproduct of a heat-treatment process which imbues them with greater suppleness for cleaner ignition and ongoing reloadability. This ammo is non-corrosive and loaded with clean burning propellant.