There is a Legacy version here.

Scatter

Source NPC Core pg. 50
This weapon fires a cluster of pellets in a wide spray. Scatter always has an area listed with it, indicating the radius of the spray. On a hit, the primary target of attacks with a scatter weapon take the listed damage, and the target and all other creatures within the listed radius around it take 1 point of splash damage per weapon damage die, of the same type as the initial attack.