Sporting Arms and Ammunition Manufacturers’ Institute

If you’ve been on the internet long, undoubtedly you’ve read a lot of mis-information about 223 Remington and 5.56 NATO. If you’re like me, you also find it difficult to find answers and specifics related to these two cartridges and rifle chamberings. The 5.56 NATO chamber is “larger” than the 223 Remington chamber- but my […]