Winchester 5.56x45mm, 55 Grain FMJ Centerfire Ammunition 20 Rounds Q3131

NOTICE: While the 5.56x45mm NATO will fit in a .223 Remington chamber, the 5.56 is a military round that runs at higher pressures than its .223 counterpart and is not recommended to be fired in a .223 Remington chamber. 

Winchester has set the world standard in superior long gun ammunition performance and innovation for more than a century. And to millions of hunters and shooters worldwide, the name "Winchester" means quality and performance - and the most complete, versatile and high-performance line of long gun ammunition in the world. In addition, for more than a century, Winchester has been the first to answer the call to arms by producing billions of rounds of small-caliber ammunition for the United States military and its allies. So, no matter what the sport, game or circumstances, you can always depend on every long gun cartridge in the Winchester Ammunition line to perform - as promised.

• Caliber:5.56x45mm
• Bullet Weight/Type:55 Grain Full Metal Jacket
• Muzzle Velocity:3270 fps
• Muzzle Energy:1306 ft. lbs.
• Quantity:20 rds/box
• Casing:Brass
• Suggested Use:Plinking, Target