History of Bullwhacker

Overview

Bullwhacker is the trait on Heirloom, an Exotic Solar Combat Bow. Aiming down sights charges the next bolt you fire. Each charge level increases the bolt's damage and blast radius.

Destinypedia and Progametalk list the same effect as Big Game Hunter, so the perk name differs by database. Heirloom's catalyst adds a scorch effect on direct hits with charged shots.