A giant first rate in Crimea and the Mediterranean

If a 170-gun, four-deck Royal Navy first rate arrived too late for Napoleon, which conflicts would use it?

Crimean bombardment and Mediterranean coercive operations are the likeliest assignments, particularly Sevastopol and campaigns against corsair states.

The Crimean War, especially operations around Sevastopol, is presented as the clearest major-war deployment. The ship could also serve in Mediterranean bombardment and campaigns against North African states associated with corsair tribute. Its huge battery would turn stored wartime powder into a tool of coercive diplomacy once paying tribute became less attractive than using force. These missions fit a very large wooden capital ship better than searching for an equal opponent that no longer existed.