The ship remained in service with the Mediterranean Fleet in 1892, which by that time had been joined by the three s. She participated in the 1893 maneuvers, again as part of the 2nd Division in company with and the ironclad . The maneuvers included an initial period of exercises from 1 to 10 July and then larger-scale maneuvers from 17 to 28 July. In late January 1895, Amiral Duperré and the protected cruiser took part in an experimental bombardment of a simulated coastal fortification on Levant Island. The test lasted six hours and was carried out over the course of three days, so that the effect of shelling could be studied throughout the experiment. It involved over a thousand shots between the two ships, firing calibers ranging from . Neither ship was able to significantly damage the fortifications, though several of the guns were damaged and shell fragments would have inflicted casualties among gun crews. The French determined that an excessive amount of ammunition was required to neutralize the guns, and had the fortification been returning fire, both ships likely would have been seriously damaged. Amiral Duperré suffered an accidental explosion in one of her magazines on 13 May after the compartment became overheated from the adjacent boiler room. Only one shell detonated and the resulting fire was quickly suppressed by the crew. By that year, Amiral Duperré had been reduced to the Reserve Squadron of the Mediterranean Fleet, along with the ironclad and three of the s. She served as its flagship through 1896. She remained in the Reserve Squadron in 1898, by which time the French Navy had begun rebuilding several of its older ironclads. As a result, the only other members of the unit were Indomptable and Dévastation. She took part in the fleet maneuvers the following year, which lasted from 5 to 25 July. She served as the flagship of Rear Admiral Godin during the maneuvers. Later that year, she was transferred to the Northern Squadron in the English Channel, along with the two Amiral Baudins, Dévastation, Courbet, and Redoutable, since more modern pre-dreadnought battleships built in the mid-1890s had entered service by that time. Two of these new battleships— and —joined Amiral Duperré in the Northern Squadron in 1900, which at that time also included Formidable, Redoutable, and Amiral Baudin. In June and July that year, she participated in extensive joint maneuvers conducted with