0063名無しのひみつ@無断転載は禁止2017/06/04(日) 23:19:28.32ID:ik2+XIIg Ancient Slingshot Was as Deadly as a .44 Magnum An excavation in Scotland shows that Roman soldiers used lead ammo with lethal accuracy. http://news.nationalgeographic.com/2017/05/ancient-slingshot-lethal-44-magnum-scotland/ これが元記事だ この程度の英語ぐらい読めよ