Winchester USA 5.56mm M855 Full Metal Jacket Lead Core Ammunition – 500 Rounds
The rifling twist rate for this cartridge is 177.8 mm (1 in 7 in), 6 grooves right hand twist, Ø lands = 5.56 millimetres (0.219 in), Ø grooves = 5.69 millimetres (0.224 in).
According to STANAG 4172 and the official NATO proofing guidelines the 556 green tip 500 NATO case can handle up to 420.0 MPa (60,916 psi) piezo service pressure. In NATO regulated organizations every rifle cartridge combination has to be proofed at 537.5 MPa (77,958 psi) to certify for service issue.
STANAG 4172 defines the Belgian ball cartridge SS109 as the NATO reference cartridge and adds a considerable number of technical requirements like a minimum pressure of 88.0 MPa (12,763 psi) at the gas port 280 millimetres (11.0 in) down the 508 millimetres (20.0 in) long standard proof barrel and primer sensitivity that are not defined by civilian C.I.P. and SAAMI ammunition rulings and recommendations
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Winchester USA 5.56mm M855 Full Metal Jacket Lead Core Ammunition – 500 Rounds, Make sure you hit your target with the Winchester USA 5.56mm M855 Full Metal Jacket Lead Core Ammunition. The full metal jacket design features a lead core and a 62 grain weight. The caliber is 5.56x45mm, and 500 rounds are included.
We recommend the use of protective eyewear whenever using or near the use of this item.
You must be 18 or older to purchase Rifle or Shotgun Ammunition and 21 or older to purchase Handgun Ammunition. In ordering this product, you certify that you are of legal age and satisfy your jurisdiction’s legal requirements to purchase this product.
For safety reasons, we do not accept returns on ammunition. Always make sure you use the correct ammunition for your specific firearm.
The sale or shipment of this product to residents of certain jurisdictions is prohibited. Check your local laws before ordering this product. Check your local laws for any other regulations.
556 green tip Winchester celebrates its commitment to American freedom with the USA VALOR™ ammunition series. From World War I through modern day deployments, Winchester remains steadfast in its support of U.S. Warfighters as the largest small caliber enterprise in the world. Your purchase of Winchester’s USA VALOR™ Series helps support Folds of Honor.
WARNING: California`s Proposition 65
SPECIFICATIONS FOR WINCHESTER USA VALOR 556 GREEN TIP 62 GRAIN GREEN TIP (M855) FULL METAL JACKET BOAT TAIL (FMJBT) BRASS CENTERFIRE RIFLE AMMUNITION:
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