T2: This vehicle started the use of aircraft engines in tanks. This eventually became the M2A2 light tank. The .50 cal MG fired a shell that weighed 709 grains and had a muzzle velocity of 2,930'/sec. and the .30 cal fired a 150 grain shell at a velocity of 2,800'/sec.
T2 Light Tank (Modified): The .50 cal MG fired it's shells at a muzzle velocity of 2,900'/sec. and the .30 cal MG at 2,800'/sec.