枪弹伤在现代火器伤中仍占很大的比例。因此,世界各国一直很重视枪弹轻武器的发展。在第二次世界大战第一代军用步枪阅世后,现在已发展到第二代即,高速、小口径步枪簇。具有代表性的是美制M165.56毫米枪弹及苏制AK74 5.45毫米枪弹。美国已经在侵越战争中使用,苏联在侵阿战争中使 Bullet wounds still account for a large percentage of modern firearm injuries. Therefore, all countries in the world have always attached great importance to the development of bullet-friendly weapons. After the first generation of military rifles were readied in the Second World War, the second generation of high-speed and small-caliber rifles has now been developed. Representative of the United States made M165.56 mm bullets and Soviet-made AK74 5.45 mm bullets. The United States has already used it in the war of aggression. The Soviet Union made it during the war of aggression against Afghanistan