Hate to get technical, but he was probably shot with an AK-74/AKM. The AK-47 is 7.62mm/.30 cal- makes a BIG hole and does massive hydrostatic shock. The AK-74 (AKM) is 5.56mm - the Americans went to that caliber with the M-16, so the Russians had to copy us. The lighter rounds are designed to wound, not kill- wound a soldier, and you take him out of the fight plus 1 or 2 more to care for him. Also, the higher velocity jacketed round is more likely to pierce a “bulletproof” vest.
Most of us here understand that “AK-47” is used generically in the media to describe just about any Kalashnikov rifle made anywhere from the 1950s to today. Like Kleenex.