"Couronne" returned to Toulon on 10 December. In 1876, she was assigned to the Mediterranean Squadron. From 1881 to 1885, "Couronne" was reconstructed to serve as a gunnery training ship, replacing "Souverain": her armour was replaced by wood of the same thickness, two boilers were removed and her propeller was replaced. Her rigging was replaced by a full ship rig and iron spar deck and poop decks were fitted which gave her the appearance of a steam ship of the line of the type. The ship was rearmed with an assortment of guns of various calibres for training purposes, replacing "Souverain" in this role. Her crew and trainees numbered 1200 officers and enlisted men. "Couronne" was replaced as a gunnery training ship on 1 December 1908 and disarmed on 1 September 1909. She was subsequently converted to a floating barracks at Toulon until she was scrapped in 1934.