Arc Slinger

Combat

You can twirl your sling in a way that maximizes its effectiveness.

Prerequisite: Point-Blank Shot, proficient with sling or halfling sling staff.

Benefit: When using a sling or sling staff, you reduce your penalty on ranged attack rolls due to range by 2. Point-Blank Shot’s damage bonus applies within the first normal range increment of your sling (50 feet) or sling staff (80 feet).

Source: Ultimate Combat