Schwerer Gustav and Dora, largest caliber rifled guns ever, firing 7 ton shells, German
A German Krupp railway gun firing at a distant target. It was the most commonly used German railway gun of World War II.
historical-photos-rare- Hitler inspecting the massive “Schwerer Gustav” railway gun from afar. It was the largest-calibre rifled weapon ever used in combat, and fired the heaviest shells of any artillery piece.
Schwerer Gustav: Biggest Gun Ever Used in Combat: German engineers create a beastly cannon so large that it requires custom tracks to transport it.
Watch: Firing the 80 cm Railway Gun 'Schwerer Gustav'
Gustaf German World War 2 Railway Gun. Gustav Gun (know as the Schwerer Gustav gun), was the longest and largest gun in Germany.