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Big Shots – History's Largest Cannons, Mortars and Super Guns

The Karl Gerät, self propelled Mortar

May, 2017

Why It failed?:The Schwerer Gustav, Johnny OTGS World Wikia

Schwerer Gustav - Hitler's giant gun - How it worked and why it

Schwerer Gustav - Hitler's giant gun - How it worked and why it

JF Ptak Science Books: 28 entries from October 2010
Why don't artillery shells explode when they are fired? - Quora

Krupp 80 cm Kanone Schwerer Gustav (Dora) Railway Gun

Badass IRL weapons, Page 2
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