Hi Folks,
The great furniture wood in the late 18th and early 19th centuries was Cuban mahogany (Swetenia mahogoni). It is dense, hard wood that works well and finsihes beautifully. Unfortunately, it was virtually logged into extinction. You can still get small quantites from places like the island of Palau, where European colonists grew it in plantations. Cuban mahogany would probably make a pretty strong stock and work fairly well (although not nearly as well as English walnut). Wood marketed today as mahogany may be Honduras mahogany (Swietenia macrophylla) or wood of closely related genera from Africa and Asia. None can replace Cuban mahogany but you can still find lumber that is dense and hard, even from plantation grown trees. I am using plantation grown Honduras mahogany to build a case for pistols. The wood is wonderful to work and finish. The figure and color are gorgeous, but the wood is fairly soft (like beech) and would not make a good stock. However, it is not junk and for my purposes is entirely satisfactory.
dave