These polished, perfectly weighted stones are prized by halflings, for if thrown properly by a proficient user they ricochet off one target to strike a second. If the skiprock hits its target, it ricochets toward another target of the thrower's choice adjacent to the original target (within 5 feet). The thrower immediately makes a second attack roll, with an attack bonus equal to the first roll's attack bonus -2. Skiprocks can be used as sling bullets, but cannot make ricochet shots when used as ammunition unless thrown from a halfling warsling by a user proficient in both weapons. A skiprock may be drawn as a free action.