Between the years 1805 and 1820 Apperley devoted himself to fox-hunting. From 1813 to 1819 he was the agent for his brother-in-law's estates and lived at Tŷ Gwyn, Llanbeblig. Around 1821, under the pseudonym of "Nimrod", Apperley began to contribute a series of articles to The Sporting Magazine that covered horse races, hunt meets and other sporting events. His references to the personalities of the people he knew or met at such events helped to double the circulation of the magazine within a few years. Mr. Pittman, the proprietor of The Sporting Magazine, gave Nimrod a handsome salary and defrayed all the expenses of his tours. He also gave Nimrod a stud of hunters. After Pittman's death, the proprietors of the magazine sued Apperley for the money that had been advanced. To avoid imprisonment, Apperley moved to Calais in 1830, where he supported himself by writing.[4][5] Apperley is best known for the two books, The Life of a Sportsman, and Memoirs of the Life of John Mytton, both of which were illustrated with coloured engravings by Henry Thomas Alken