The Object 120 SU-152 "Taran" (Russian: ??-152 «TAPAH») was a fully enclosed Soviet tank destroyer built in 1965, that never progressed past the experimental stage

History

In the early 1960s, the Soviet military concluded that the armor-piercing ammunition used by the T-55 medium tank, and the T-10 heavy tank was unable to penetrate the frontal armor of the newest American M60 and British Chieftain main battle tanks. The Soviets therefore began parallel research on several different anti-tank weapon systems, such as development of new armour-piercing discarding sabot and shaped charge ammunition for existing tank guns, new rifled and smoothbore tank guns with calibers ranging from 115 mm to 130 mm with anti-tank missiles.

One of these projects became the SU-152 "Taran". The factory designation was Object 120 (?????? 120). In terms of firepower and mobility, it surpassed all foreign tank destroyers. The main reason the SU-152 "Taran" wasn't adopted was due to the development and adoption of more effective 125 mm smoothbore tank gun and anti-tank missiles.