After January 1863, the Center became the XIV Corps. After June 1863, the regiment was reassigned to McCook's 2nd Brigade, 2nd Division, Reserve Corps. Between 30 June and 18 July, the regiment went to Murfreesboro, Tennessee, before returning to Nashville. It left Nashville on 3 August and marched to the fighting front near Chattanooga, Tennessee. Major General Gordon Granger commanded the Reserve Corps and was a harsh disciplinarian. By 14 September, the Reserve Corps outmarched its wagon train and had no food. Though Granger had forbidden his soldiers to forage, McCook and other officers determined to ignore this unreasonable order. While sitting in front of his tent, Granger noticed two soldiers from the 125th Illinois walk past with meat plundered from a farm. As punishment, he ordered the men to march around a tree, each carrying a fence rail. Seeing other soldiers with stolen food, Granger began arresting every forager his mounted patrol could find and stringing them up by their thumbs. This provoked a near-mutiny. Finally, McCook and Brigadier General James B. Steedman convinced Granger to relent and release their men. After this incident, Granger became extremely unpopular with his soldiers.