Armament Gun development As the Sherman was being designed, provisions were made so that multiple types of main armament (specified as a 75 mm gun, a 3-inch gun, or a 105 mm howitzer) could be mounted in the turret. The possibility of mounting the main gun of the M6 heavy tank, the 3-inch gun M7, in the turret of the M4 Sherman was explored first, but its size and weight (the weapon was modified from a land-based antiaircraft gun) made it too large to fit in the turret of the Sherman. Development on a new 76 mm gun better suited to the Sherman began in fall 1942.
armament gun development as the sherman was being designed provisions were made so that multiple types of main armament (specified as a 75 mm gun a 3-inch gun or a 105 mm howitzer) could be mounted in the turret the possibility of mounting the main gun of the m6 heavy tank the 3-inch gun m7 in the turret of the m4 sherman was explored first but its size and weight (the weapon was modified from a land-based antiaircraft gun) made it too large to fit in the turret of the sherman development on a new 76 mm gun better suited to the sherman began in fall 1942