Bible Verses About Sling: Used in war

Who were seven hundred most valiant men, fighting with the left hand as well as with the right: and slinging stones so sure that they could hit even a hair, and not miss by the stone's going on either side.

And they destroyed the cities: And they filled every goodly field, every man casting his stone: and they stopt up all the springs of waters: and cut down all the trees that bore fruit, so that brick walls only remained: and the city was beset by the slingers, and a great part thereof destroyed.

And Ozias prepared for them, that is, for the whole army, shields, and spears, and helmets, and coats of mail, and bows, and slings to cast stones.