80cm Schwerer Gustav Shell, Daniel Perez Sutil

What was the biggest naval cannon of World War II? What was the biggest land-based cannon of World War II? - Quora

How powerful was the cannon on the M3 Chaffe? - Quora

In WWI & WWII, the 37mm was popular and the caliber was used by all sides with various versions including direct fire guns as well as light howitzer artillery types. How was

With the amount of artillery shells fired by both sides during both World Wars, were there any instances where the shells collided in the air? - Quora

Was the K 5 Glatt Railway cannon and Peenemünder Pfeilgeschoss used in combat in WWII? - Quora

World War II Weapons That Didn't Work - 24/7 Wall St.

10 Wunderwaffe, or 'Miracle weapons', that Nazis could have used to win WW2 – History Totally Naked

World War II Weapons That Didn't Work - 24/7 Wall St.

What are some interesting facts about World War 1 artillery? - Quora

What was the biggest naval cannon of World War II? What was the biggest land-based cannon of World War II? - Quora

Some WWII fighter planes were armed with 'cannons.' What kind of bullet did the cannons shoot? What kind of damage could it do? - Quora

How has artillery's use changed throughout the 20th century? - Quora