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 ...

** 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. ** Federal’s Fusion MSR.223 Rem.

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, ...

Demand for ammunition caused by wars in Iraq and Afghanistan has left sportsmen and law enforcement paying more for shells and waiting longer to get them. Hunters sighting-in their guns or practicing ...