1 Samuel 17:49

And smote the Philistine in the forehead. — The LXX. add the words “through the helm” The Greek translators could not understand the fact of the forehead being unprotected. But the head-pieces of the armour then do not appear to have possessed “visors;” the face was covered with the heavy shield, which was borne, we are told (1 Samuel 17:7), before him. No doubt the Philistine, utterly despising his youthful “unarmed” antagonist, advanced towards him without using, as was customary, the face protection of the shield.

Slinging stones had been brought among the Israelites to an extraordinary perfection. Many years before this time we read that in the tribe of Benjamin were “700 chosen men left-handed; every one could sling stones at an hair’s breadth, and not miss” (Judges 20:16).

A work by W. Vischer, on “Ancient Slings” (Basel, 1866), quoted by Lange, speaks of slingers who could hit the part of the enemy’s face at which they aimed.