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Was Hitlers Gustav Cannon ever used and what happened to it after

Could we make a round for the 80cm Gustav Gun with a nuclear warhead, and how big could the explosion be? - Quora

Example of a round used in the Schwerer Gustav : r/pics

Schwerer Gustav, largest rail cannon in the world

This Is The Largest Gun Ever Used In Battle

Shell from the largest gun ever built, pt. 1, Marcin Wichary

SCHWERER GUSTAV – M X D V S

What if the Schwerer Gustav had a shell ten times bigger? What kind of damage would it do? - Quora

800MM GUSTAV GUN vs 1000 SOVIET SOLDIERS - Men of War Assault Squad 2

Hobby Boss German 80cm K(E) Railway Gun 'Dora' Vehicle Model Building Kit for 14 years to 18 years : Everything Else