 According to Hrushevsky, Vyshnevetsky built the fortress out of his own pocket as both Sigismund II Augustus and Devlet I Giray refused to provide any assistance.Eventually he managed to develop it to the point that khan Devlet I Giray could not take it, and he deflected the khan's efforts to Moskovia.In 1556 in service to Ivan the Terrible he helped lead two raids of Ukrainian Cossacks and Russians against the Crimean Tatars around Ochakiv.