By Guy J. Sagi The Russian military adopted the AK-47 in 1947, chambering the 7.62×39 mm cartridge. For more than two decades, that duo did yeoman’s work for its armed forces and continues to do so in hot spots around the globe. An improved design rolled out in 1974—labeled the equally unimaginative “AK-74”—digests 5.45×39 mm, […]