That’s the title of a very interesting photo essay over at War History Online. It has pictures of everything from a British .303 armor-piercing round (note the cordite propellant used instead of powder):
to an entire German Leopard 1 main battle tank:
(Click either image for a larger view.)
There are many more images at the link. Interesting viewing for military and firearms buffs.
Peter
When did Chuck Norris meet that German Tank?