The 7.62×51mm cartridge, also known as the 7.62 NATO, is a rifle round developed in the early 1950s. It was designed for use in military firearms and is known for its accuracy and effective range. The cartridge features a bullet diameter of 7.62 mm and a case length of 51 mm, making it suitable for various applications, including infantry rifles and machine guns. This caliber is widely used by many armed forces around the world and has been adopted in various firearms, such as the M14 rifle and the FN FAL. Its versatility and performance have made it a popular choice for both military and civilian shooting sports.