AP or "Armor-piercing shell" is a type of ammunition that is designed to penetrate (you guessed it) armour. It is mostly known because of its service in WW1 and WW2 in tanks, warships and anti-tank weaponry. This type of ammunition was slowly abadoned during the 1950s due to the need of ammunition with higher efficiency and penetration due to the introduction of cold-war era MBTs (Main Battle Tanks) and active/passive armour. A few other types of ammunition that were widely used in WW2 are: APCR (Armour Piercing Composit Rigid), HE (High Explosive), HEAT (High Explosive Anti Tank), HESH (High Explosive Squash Head) Modern era ammunition used in the T-62 U-5TS gun: APFSDS (Armour-piercing fin-stabilized discarding sabot), DU (Depleted Uranium), ATGM (Anti Tank Guided Missile)
by WaifuRacer July 16, 2018

by Scouse boyd January 23, 2017


by Tegg Frensen September 16, 2012

by hsjavaaa January 22, 2024

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by The Big Bear Bucket September 20, 2010

AP is an abreviation for american pie.
by sbobougghht January 21, 2020
