The SU-152G (Russian: СУ-152Г, GABTU index "Object 108") was a Soviet experimental 152-mm self-propelled howitzer, and was designed by OKB-3 of the heavy machine construction division of Uralmash.

At the end of the World War II in 1945, the USSR started to seek a new anti-tank and assault gun to defeat armored targets by direct fire.

At that time, the Western world and the US were developing artillery capable of firing at high elevation angles from behind cover.

Despite the necessary sighting adaptations for high-elevation firing provided to Soviet artillery guns, the maximum barrel elevation available was often only 15-20 degrees.

The first experimental model of the artillery was completed in March 1948, and was handed over to the military representatives of the factory on 16 June 1948.

However, a number of defects were found in the design of rubber-metal hinges, which were used in Soviet armored vehicles for the first times, and there were problems with the tracks as well.

Improvements of the basic chassis and elimination of identified flaws continued until June 1955, after which the SU-100P and the SU-152G were adopted into service by the Soviet Army, but most of the work on self-propelled guns were called off by Khrushchev in 1955, which stopped the SU-152G from entering mass production.

When fired with full propellant charge, the shells had a muzzle velocity of 508 meters per second with a maximum range of 12.39 km.

When equipped with a contact fuze, it was capable of a 2100-square-meter area denial against enemy infantry in a standing profile, and was able to create a crater up to 1.2 m deep and up to 3.5 m in diameter.

It is modified from a V-54 engine while making the following adjustments: The SU-152G utilizes planetary transmission, with six shifts for going forward and two for reversing.

On the rear part of the vehicle the guide wheels were installed, while the driving sprockets were mounted on the front.

In addition, the crew of the vehicles were often poisoned by the exhaust gases after firing in closed combat compartments.

All the work on Soviet self-propelled guns were put into a halt in the 1960s and only resumed when the First secretary of the TsK KPSS was removed from position.

However, the results of the Korean War had forced the US military to accelerate the process of designing a new self-propelled howitzer.

During the course of further development of the T99E1, the T194 was created, featuring an open combat compartment with a reduced ammunition load from 30 to 24 rounds.

To increase stability of the automatic control system during firing, a folding opener was located in the rear of the hull.

[23] An easier option with an open installation of the gun was available as well, but it did not go further than a prototype obtained by combining the Crusader tank with some parts of the FV300 series.

The result of this decision was a backstep in the following decades for the USSR, compared to NATO countries, which could only be liquidated by the early 1970s.