The British Admiralty gave notice in April 1777, that they were ready to issue letters of marque for privateers against the Americans.

[3] James Ranton, Saville's captain, acquired a letter of marque on 18 August 1777.

[1] In November 1778, Saville, in company with Tartar, took a Swedish vessel that had been on her way from Venice to Bordeaux.

[2][a] On her next cruise, early in 1779, Saville was in company with the Liverpool privateer Bess, which was under the command of Captain Perry.

[8] In October 1785 Savile, Niccol, master, was reported lost at Port Maria, Jamaica.