Not an easy source but available: Brown's book on guns in colonial America [should be in your library]. Other sources are more specific and narrow in scope. For the American longrifle ["Kentucky rifle"] see Shumway's Rifles of Colonial America, v. 1&2 [pricey, see library]. And there are many others: Grinslade's book on fowlers, Hamilton's book on early colonial guns, etc. Brown's is the only source I know of for all-around history of MLers in America, English, French, Spanish and American arms.