The battery served in Mississippi during much of the rest of 1862, serving as part of the Confederate rear guard after the Battle of Iuka in September and seeing action at the Second Battle of Corinth. In early 1863, the unit became part of Brigadier General John Gregg's brigade, and was briefly stationed at Port Hudson, Louisiana. After Major General Ulysses S. Grant landed Union troops in Mississippi in April, Gregg's brigade transferred to Jackson, Mississippi to aid Confederate forces attempting to stop Grant. As part of Gregg's brigade, Bledsoe's Battery served at the Battles of Raymond and Jackson in May. In September, the battery was part of the Confederate Army of Tennessee when it repulsed Major General William Rosecrans' offensive into Georgia at the Battle of Chickamauga.