The M14 automatic rifle served with the American military from 1959 until it was replaced in 1963 by the M16. In more recent years, modified M14 rifles have been deployed in Iraq for army marksmen, and US Navy SEAL operatives have also used adaptations of the original M14. It has always been seen as a lethal long-range weapon, and with a bullet velocity of 850 m/s, an accurate shot is probably going to kill. It was designed to improve on the M1 Garand, which had been used for the Second World War. It was designed to make a lighter rifle to assist the soldiers, thus letting the soldiers carry more ammunition, giving them an invaluable advantage. It uses 7.62mm .308 cartridges - these are large and heavy, which can cause problems when large ammunition supplies are needed. When used in Vietnam the M14 was criticised for being hard to carry through the dense forests, and the wooden stock was prone to warping in the hot climate. This wood has since been replaced by a man-made plastic casing. Get yourself a .308 by clicking the link.