Highway 99 southbound was closed for nearly 12 hours after a high-speed chase ended in officer-involved shooting.

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 it comes to the 223 vs 556, it’s not so much about which one is best, but about the differences between them. The 223 Remington and 5.56 NATO cartridges have identical case dimensions but are not ...

The gunman at Sandy Hook Elementary School allegedly used a .223 caliber rifle. This is one example of a gun that uses this caliber. Update 9:50am, December 17, 2012: The New York Times reports that ...