Except that it is a stone rifle (gun for firing projectiles made of stone ), there is no clear technical description. Often short guns with relatively large calibers, i.e. mortars , are written. The mouth is sometimes described as funnel-shaped.
Other sources describe the Bombarde as a gun with a longer barrel, i.e. a cannon , in the form of a chamber gun (i.e. as an early breech loader ). The design is sometimes described as a bar ring gun .
Examples of guns called "Bombarde":
- Volker Schmidtchen : Bombards, fortifications, gunsmiths: From the first wall breakers of the late Middle Ages to the siege artillery of the Renaissance . Droste, Düsseldorf 1977, ISBN 3-7700-0471-X .
- Meyers Großes Konversations-Lexikon , Volume 3. Leipzig 1905, p. 187. 
- Johann Christoph Adelung , Grammatical-Critical Dictionary of High German Dialect, Volume 1. Leipzig 1793, pp. 1123–1124. 
- Brockhaus' Kleines Konversations-Lexikon, fifth edition, Volume 1. Leipzig 1911., p. 237. 
- Herders Conversations-Lexikon , Freiburg im Breisgau 1854, Volume 1, p. 602. 
- Pierer's Universal Lexikon , Volume 3. Altenburg 1857, p. 57. 
- Karl von Elgger: The war firearms of the present, Brockhaus Verlag, 1868, pages 46–47 
- August Friedrich Demmin : The historical development of the weapons from the Stone Age to the invention of the needle gun, Verlag Seemann, 1869, pages 73, 517, 519, 520