Uuuummmmmmmmm........I see what you're trying to say there but you're not comparing apples to apples. An arrow and a bullet kill in different manners so you can't bring a bow and arrow to a gun fight.

Arrows kill by hemorrhaging and bullets kill by trama. (Although granted they do sometimeskill by hemorrhaging if the trama doesn't work) But just not the same. I certainly would not agree that because an arrow is effective that any old rifle cartridge will do.