In early 1863, the battery was transferred to the Vicksburg, Mississippi area, where it occupied a fortification known as Fort Wade. While at Fort Wade, the battery shelled passing ships of the Union Navy. The earlier guns of the battery had been replaced by 10-pounder Parrott rifles; one of these weapons burst on March 31, inflicting 10 casualties in the battery. Guibor's Battery was also stationed in Fort Wade. At the Battle of Grand Gulf on April 29, seven ironclad warships of the Union Navy bombarded Fort Wade and the nearby Fort Coburn. The guns of Fort Wade were silenced, but Fort Coburn continued firing. Towards the end of the fighting, Wade was killed. The battery suffered seven casualties in the battle. After Grand Gulf, the battery was temporarily placed on detached service, and missed the Battle of Port Gibson on May 1. Wade's Battery was attached to Francis Cockrell's brigade in John S. Bowen's division.