Tag: energy

.264 USA 5.8x42DBP-10 A 5.45x39mm 7N6 cartridge, flanked by two of its predecessors. The 5.6x39mm (left) was developed from an early Soviet ballistic test round using the 7.62x39mm case head, which was designed to duplicate the performance of the early .222 Remington Special (right), later renamed the .223 Remington. 5.56mm (left) alongside some of its competitors. NewtonradG11 PHOTO_20160430_1516532