Why were ancient bows and arrows so powerful that an arrow could kill a man?

One? Fine workmanship

Because in ancient times, the bow and arrow is the most commonly used tool for people to fight, and is also a lethal tool, so that the lethality of this tool is particularly large, then soldiers if you want to pull the bow, the force is to be big enough to do, so in the time of making this bow and arrow are made of the best materials, and is particularly fine workmanship, then after a lot of trial before they can be built in bulk. And the workmanship is particularly fine, then only after a lot of trial and error can be built in bulk.

Two? Long range

Legend in ancient times, ancient bow and arrow range is particularly far, usually in the case of about 100 meters, the farthest range can reach more than 300 meters , so that it and our current gun is comparable. So it is comparable to our current guns. Then it has a long range, and his power must be particularly great. So that he would be able to kill with a single sword, and that the archers of the time were practiced.

Three? Archer technology is good

The archer at that time not only have to have strength, and technology is also particularly good, he is also after a thousand refinement to become an archer, the archer at that time and our current snipers are the same, so that their technology is really can be killed in one move. And in the old days, human strength was really special, if it is now we may not be able to pull that bow and arrow.

The above explains, about the ancient bow and arrow does not have much lethality, why can still one arrow on the death of the summary, in fact, this statement is not correct, then the bow and arrow lethality is really particularly large, because his workmanship is particularly fine. And the strength of the person who uses the bow and arrow is also particularly large, so that if the two kinds of cooperation, the killing power is really quite large.