Schwerer Gustav - The Greatest, And Most Useless Gun Ever Put Into

Gustav fired a total of 48 shells at Sevastopol, most of which were aimed at Soviet fortresses. Berlin threw away more 1,000 tons of steel for 48 shots.

Heavy Gustav - The Largest Weapon Ever Built

World's BIGGEST / MOST POWERFUL GUN ever built! (Heavy Gustav Railway Gun.)

In size and range, how did the biggest naval cannon of WWII compare to the biggest land-based cannon of WWII? - Quora

warfare - Long Range Big Guns: An extreme bombardment ship - Worldbuilding Stack Exchange

Schwerer Gustav: Hitlers Enormous Gun

The UnMuseum: Schwerer Gustav - World's Biggest Gun

What is the worst range weapon throughout all of history? - Quora

Second World War Weapons That Failed

What was the largest and heaviest handheld gun in history that a human could shoot? - Quora

Schwerer Gustav Super Cannon - The Most Useless Weapon Ever Made