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 ...
There are a lot of famous wildcat cartridges, like as the .257 Roberts, the .35 Whelen, and the .300 Whisper, which became the .300 Blackout. They were all created to address certain ballistic needs, ...
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