Making and Using the Venerable Hand Sling

You don't have to anticipate facing a foe named Goliath to enjoy taking a whirl with a hand sling.

hand sling - throwing technique
THE OVERHAND THROWING TECHNIQUE [A] The thrower drops the pocket and draws the missile back into a wide vertical orbit. [B] The throwing arm rises high, then swings down behind the slingers head to tighten the first orbit. At the same moment, the slinger begins a long "pitcher's step." [C] The thrower completes the forward step as the missile reaches the top of its second orbit, and the knotted cord is released as the slinger's wrist snaps forward.
LYNN P. BALLARD