April 22, 2017 H.M.S. Rifleman Chasing a Brazilian Slaver, 1850 The H.M.S Rifleman was one of the many British vessels patrolling the Atlantic Ocean for slave ships. The Illustrated London News, 14 December 1850. Courtesy of University of Missouri Libraries. Leave a Reply Cancel reply Your email address will not be published. Required fields are marked *Comment Name * Email * Website Save my name, email, and website in this browser for the next time I comment.