fighting so with the left hand as with the right hand, and casting so stones with slings at a certain thing, that they might smite also an hair, and the stroke of the stone should not be borne [away] into the tother part. (fighting with their left hand like with their right hand, and throwing stones with slings with such certainty, that they could strike a hair, and yet the stroke of the stone would never be borne aside into some other place.)