On August 27, 1863, after the First Iowa Cavalry Regiment failed to capture the bridge across Bayou Metro, Federal and Confederate artillery fought a fierce duel near sundown. Battery K, Second Missouri Light Artillery, under Lieutenant T.S. Clarkson, Battery M, Second Missouri Light Artillery, under Captain Gustave Stange, and the Twenty-Fifth Ohio Battery, under Captain Julius L. Hadley, took part in the action. Robert T. McMahan of the Twenty-Fifth Ohio Battery recalled that sharpshooters' bullets flew thick as his battery formed on the right of Clarkson's Battery, ran its guns to the brow of the hill, and opened with shell under Colonel Glover's direction, placing shells in the midst of the enemy. Colonel John M. Glover of the Third Missouri Cavalry, U.S., said the artillery was ordered up with supports and, once in position under continued enemy fire, opened a tremendous fire that soon silenced the opposing guns and drove them from their position. Major John Newman Edwards, C.S.A., wrote that the opposing artillery was well planted, served with steadiness and precision, and opened with twelve or sixteen guns. Battery M, Second Missouri Light Artillery, fought with six 12-pounder mountain howitzers; Battery K, Second Missouri Light Artillery, was armed with two 3-inch rifled guns and two 12-pound heavy howitzers; and the Twenty-Fifth Ohio Battery had four 1841 six-pounder cannons converted with James Rifling and two 3-inch 1861 rifled guns.