Thunderhead Greatbow
From Age of Sigmar - Lexicanum
Thunderhead Greatbows are bolt weapons used by the Stormcast Eternals Castigators. The bows themselves are miracles of Azyrite science and ingenuity.[1]
Projectiles
The bolts are made out of stout shafts with braced heads filled with the storm-breath of Stardrakes. The projectiles they launch hits more likes maces than mundane bolts.[1]