First World War Era
Shot and shell used prior to and during World War I were generally cast from special chromium (stainless) steel that was melted in pots. They were forged into shape afterward and then thoroughly annealed, the core bored at the rear and the exterior turned up in a lathe. The projectiles were finished in a similar manner to others described above. The final, or tempering treatment, which gave the required hardness/toughness profile (differential hardening) to the projectile body, was a closely guarded secret.
The rear cavity of these projectiles was capable of receiving a small bursting charge of about 2% of the weight of the complete projectile; when this is used, the projectile is called a shell, not a shot. The HE filling of the shell, whether fuzed or unfuzed, had a tendency to explode on striking armor in excess of its ability to perforate.
Read more about this topic: Armor-piercing Shot And Shell
Famous quotes containing the words world, war and/or era:
“The world is filled with folly and sin,
And Love must cling where it can, I say:
For Beauty is easy enough to win;
But one isn’t loved every day.”
—“Owen” “Meredith” (1831–1891)
“Testimony of all ages forces us to admit that war is among the most dangerous enemies to liberty, and that the executive is the branch most favored by it of all the branches of Power.”
—James Madison (1751–1836)
“The era of the political was one of anomie: crisis, violence, madness and revolution. The era of the transpolitical is that of anomaly: an aberration of no consequence, contemporaneous with the event of no consequence.”
—Jean Baudrillard (b. 1929)