Comparing: Object 263 vs. AMX 50 Foch (155)

The development of a heavy tank destroyer on the basis of the IS-7 heavy tank was started in 1950. Three design projects were developed, one of which resulted in a full-size wooden prototype. However, further development was discontinued due to phasing out the IS-7 mass-production.

In 1952, with the launch of the AMX 50 120 tank project, the French discontinued development of the AMX 50 Foch tank destroyer. A tank destroyer having the same 120-mm gun armament as the tank was thought to be unnecessary. There were attempts to upgrade the main gun to 155 mm, but these efforts were abandoned as France made moves to adopt standardized NATO equipment.