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A piercing ram is a weapon used by various spelljamming ships. This ram consists of a prolongation of the bow of the ship to form an armoured beak, usually between six and twelve feet (2-4 m) in length, which is driven into the hull of an enemy ship in order to puncture the hull and disable the target ship. Hitting a ship with a piercing ram has a chance of causing the two ships to become locked together.