Pumhart von Steyr

The Pumhart von Steyr is a medieval supergun from Styria, Austria, and the largest known wrought-iron bombard by caliber. The cannon was produced in the early 15th century and could fire, according to modern calculations, a 690 kg stone ball around 600 m, loaded with 15 kg of powder and set up at an elevation of 10°.

The bombard is today on display in one of the artillery halls of the Heeresgeschichtliches Museum at Vienna; it is accessible from March to October.

Besides the Pumhart von Steyr, a number of 15th-century European superguns are known to have been employed primarily in siege warfare, including the wrought-iron Mons Meg and Dulle Griet as well as the cast-bronze Faule Mette, Faule Grete and Grose Bochse.