Sixteenth-century military writer Sir John Smythe thought that an arquebus could not match the accuracy of a bow in the hands of a highly skilled archer; other military writers such as Humfrey Barwick and Barnabe Rich argued the opposite. An arquebus angled at 35 degrees could throw a bullet up to 1,000 m or more, much farther than any archers could shoot. An arquebus shot was considered deadly at up to 400 yards (366m) while the heavier Spanish musket was considered deadly at up to 600 yards (549 m). During the Japanese Invasions of Korea, Korean officials said they were at a severe disadvantage against Japanese troops because their arquebuses "could reach beyond several hundred paces". In 1590 Smythe noted that arquebusiers and musketeers firing at such extreme distances rarely seemed to hit anything and instead decided to argue "effective" range, claiming that English archers like the ones from the Hundred Years' War would be more effective at 200–240 yards (183–219 m) than arquebusiers or musketeers, but by that point there were no longer enough skilled archers in England to properly test his theories.