Winchester M855 Green Tip 5.56 NATO 62 gr 3060 fps Full Metal Jacket (FMJ) Ammo 200 Round Box
USA centerfire rifle ammo is the ideal choice for training or extended sessions at the range and provides several features such as no expansion, positive functioning, good accuracy, and no barrel leading.
Brand Winchester Ammo
Category Centerfire Rifle Rounds
Series M855 Green Tip
Caliber 5.56x45mm NATO
Model USA
Rounds Per Box 200
Casing Material Brass
Muzzle Energy 1289 ft lbs
Muzzle Velocity 3060 fps
Application Target
Boxes Per Case 4
Bullet Type Full Metal Jacket (FMJ)
Bullet Weight 62 gr
Caliber Dictionary
The Below Information Has Been Provided From Our Gun Caliber Dictionary And Is Meant For Informational Purposes Only. It Is Not Intended to Describe The Unique Specifications For This Ammunition.
The 5.56X45mm NATO cartridge was designed by James Sullivan, a member of Eugene Stoner's engineering team that developed both the M16 rifle and its original cartridge. The 5.56X45mm NATO was adopted by the U.S. military in 1964 and by NATO in 1980. With bullet diameter of .224-inch, the original M193 military cartridge used a 55-grain bullet at 3250 fps; the current M855A1 cartridge, developed by FN, uses a 62.5-grain bullet at 3020 fps, offering greater range and better penetration. The civilian version of the 5.56X45mm is 223 Remington; the cartridges are dimensionally identical but military chamber dimensions and specifications for military brass are different. It is considered safe to use 223 Remington ammo in a 5.56X45MM NATO chamber, but not a good idea to use 5.56X45mm ammo in a rifle specifically chambered for the 223 Remington. Although the stopping power of .22-caliber bullets remains controversial the 5.56X45mm has served well in now multiple generations of M16 rifles. — Craig Boddington
