Wiki isn't a reliable source.
no but it shows the make up of an AP shell fact is without explosives in the shell all you have is a giant bullet...
a bullet is offten solid metal.. a shell is just that a shell with explosives inside of it..
An armour piercing shell is a type of ammunition designed to penetrate armour. In naval warfare and older anti-tank shells, the shell had to withstand the shock of punching through armour plating. Shells designed for this purpose had a greatly strengthened case with a specially hardened and shaped nose, and a much smaller bursting charge. Some smaller calibre AP shells have an inert filling, or incendiary charge in place of the HE bursting charge. The AP shell is now very rarely seen except in naval usage, and is not commonly used there
