The 5.56 NATO is a higher pressure military derivative of the 223 Remington. The cartridge has been around since about 1979, and due to the availability of military surplus ammunition, it has become a ...
When the 300 Blackout was introduced in 2010, a lot of shooters simply yawned because its ballistics were not as impressive as the 7.62x39. But many soon realized that the real forte of the 300 ...