M2 M3 M6 Maximum Rate of Fire (ROF): 20 rounds per minute Penetration comparison See also List of U.S. Army weapons by supply catalog designation List of artillery Weapons of comparable role, performance and era Ordnance QF 75 mm : contemporary British tank gun 7.5 cm KwK 40 : contemporary German tank gun F-34 tank gun : contemporary Soviet tank gun References Sources Zaloga, Steven J., Brian Delf – US Anti-tank Artillery 1941–45 (2005) Osprey Publishing (New Vanguard 107), . TM 9-2800 Standard Artillery and Fire Control Material (dated February 1944) External links Armor penetration table of US 75 mm M3 L/40 guns (search for Intelligence then Text Database of Penetration Data and select US guns) U.S. 75mm M61 Tank Round – WWII 75 mm artillery World War II artillery of the United States World War II tank guns M4 Sherman tanks Aircraft artillery Weapons and ammunition introduced in 1941 Tank guns of the United States