The Ironweld Arsenal is what happens when human impatience and duardin perfectionism share a drawing board, and the great cannon is its masterpiece. Cast in the gun-foundries of cities like Greywater Fastness and hauled to war on blessed carriages, each piece throws roundshot that can punch through a gargant's ribs, a warlord's monstrous mount, or a fortress gate at extreme range — the Ironweld does not much care which, so long as the sums are correct.
Great cannon crews are famous for treating their guns as colleagues: each piece is named, its temper learned, its carriage chalked with tally marks and prayers. Duardin gun-captains sight along the barrel with the same patience their ancestors spent on runework, while human matrosses measure powder and argue windage. When a Dawnbringer Crusade wins its first great cannon, its people sleep differently — the night still howls, but now the settlement can howl back.