What gun did the T-30 use?

The Heavy Tank T30 and Its Massive Firepower

During the evolution of heavy armored vehicles, military engineers sought to equip tanks with increasingly devastating firepower. A prime example of this ambition was the Heavy Tank T30, a vehicle designed to pack a massive punch on the battlefield.

At the heart of the T30's design was the 155 mm T7 gun. This formidable weapon was directly adapted from the 155 mm M1A1 gun, a heavy artillery piece previously mounted on the GMC M40 self-propelled gun.

However, integrating such an enormous weapon into a tank turret presented significant engineering hurdles. Managing the immense size, weight, and recoil of a 155 mm caliber gun within the confines of a revolving turret required innovative solutions, making the T30 a fascinating milestone in tank development.