Appreciating the size of a "Really Big Gun" -- 18" of Raw Muscle

[limpetmine]

At the Air Firce museum in Dayton, Ohio, they have a representation of one of the bunker buster bombs they made for the first Gulf war. It was a gun barrel, IIRC, an 8", filled with explosive, a hardened tip, booster to drive it further into the earth, and the guided tail seation.


So old gun barrels serve still!