The regiment was involved in nearly continuous combat during the war. The regiment went on to fight in the Iuka-Corinth Campaign at Iuka (September 19, 1862) and in the Second Battle of Corinth (October 3–4, 1862) and in the Vicksburg Campaign. It was captured en masse at the fall of Vicksburg although paroled soldiers were formed into a consolidated 3rd and 5th Regiment which fought until the end of the war. Robert Bevier was one of two Lieutenant Colonels in this consolidated regiment.