Two of the most popular cartridges today are nearly identical and sometimes considered transposable, but when looking at 5.56 vs .223, there are some key differences. The .223 Remington started as a ...

Some believe the 5.56 NATO was the original military cartridge and that the 223 Remington was the civilian offshoot. That’s not the case. In 1970, NATO (North Atlantic Treaty Organization) affiliated ...

The cartridges .223 Remington and 5.56×45mm NATO often get lumped together, but the confusion around them has a long, tangled history. Though they look nearly identical, critical differences in ...

** When you buy products through the links on our site, we may earn a commission that supports NRA's mission to protect, preserve and defend the Second Amendment. ** When it comes to home defense, the ...

There are two popular types of AR-15 calibers: 5.56x45mm NATO and .223 Remington. The sales of modern sports rifles are high these days, and many people are flocking to the AR-15. What exactly, then, ...

** When you buy products through the links on our site, we may earn a commission that supports NRA's mission to protect, preserve and defend the Second Amendment. ** Ever since posting Building a ...

Key point: The AR-15 has several features that make it one of the most reliable and deadly weapons of all time. If you’re serious about your firearms then you’ve undoubtedly heard the name Stag Arms.