Armor Piercing Shell

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The effects of armor piercing rounds on a Tiger I's turret.
The effects of armor piercing rounds on a Tiger I's turret.

An armor-piercing shell is a type of ammunition designed to penetrate armor. From the 1920s onwards, armor-piercing weapons were required for anti-tank missions.

An armor-piercing shell must withstand the shock of punching through armor plating. Shells designed for this purpose have a greatly strengthened case with a specially hardened and shaped nose, and a much smaller bursting charge. Some smaller-caliber AP shells have an inert filling, or incendiary charge in place of the HE bursting charge. The AP shell remains the preferred round in tank warfare, as it has a greater "first-hit kill" probability than a high explosive anti-tank (HEAT) round, especially against a target with composite armor, and because of higher muzzle velocity, is also more accurate than a HEAT round. Armor-piercing cartridges are also available as small arms ammunition, primarily for use as an anti-materiel round.

Armor Piercing in OMG

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