200 Rounds of 5.56x45 Ammo by Winchester USA - 55gr FMJ M193

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2 Review(s)

Ammo Overview

Ammo Quantity - 200 rounds per box
Ammo Manufacturer - Winchester
Projectiles - 55 grain full metal jacket (FMJ) M193
Ammo Casings - Boxer-primed brass
Muzzle Velocity - 3,270 fps
Muzzle Energy - 1,306 ft lbs


Maybe you were made in America yourself. Or maybe you were made in one of the world’s other outstanding countries, and eventually came here to join the rest of us Americans. But unlike the people who fire it, Winchester’s USA ammunition is always American-made.

Do you own an AR-15, one of America’s greatest inventions to date? Then this is its 5.56x45 ammunition. Each cartridge is loaded to the military’s M193 specs, which means it has a 55 grain bullet and a muzzle velocity of 3,270 fps. A cartridge like this has plenty of juice to cycle a semi-auto, and delivers the flat trajectory which makes sharpshooting that much easier. The FMJ bullet is preferred for target shooting, and though it doesn’t technically expand this round’s bullet does have a significant chance of fragmenting apart inside its target.

Winchester loads these rounds with heat-treated brass cases. You can still see the discoloration around their shoulders, an indication that they’ll resist splitting, cracking, and interrupting the flow of fire. Always non-corrosive and always nonmagnetic, Winchester USA is one of the most popular brands of range ammo simply because it works so reliably.

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