Show A big gun the largest gun in the world is a loo ton gun made in england by sir william armstrong for the italian government at the trial at espezzia Sp ezzia italy with a projectile of nearly 2000 pounds and charges of powder of to pounds the pressure at bottom of base ranged from 16 to 20 tons per square inch the ty of shot obtained was 1337 to 1504 feet per second the targets used consisted of various metal plates of inches thickness backed up by sufficient wooden supports to make a total inches A steel plate from the coulot foundry costing was also used and although the shot failed to penetrate the plate it dealt the target such a fearful blow as to fully destroy it and there is no ironclad iron clad now afloat capable of resisting the shot of this gun the length of shot is from feet to inches by 19 20 inches in diameter length of bore of gun is ao diameters diameter over all near 86 inches |