 By the later stages of World War II the majority of artillery in use was either in the form of howitzers of 105 mm to 155 mm, or in form of hybrid anti-tank/field guns that had high enough muzzle velocity to be used in both roles.The most common field guns of the era were the British 5.5 inch, the U.S. 155 mm Long Tom (a development of a French World War I weapon) and Soviet BS-3 - an artillery piece adapted from a Naval gun and designed to double up as an anti-tank weapon.One of the most produced field guns during the war was the Soviet 76mm ZiS-3 with over 103,000 produced.