A good wood bodied spoke shave is a wonderful tool for stocking a longrifle. The cutting edge angle is lower with a wooden spokeshave as compared to the standard metal bodied variety. Several years ago, Mark Silver was kind enough to loan me his, during one of the Gunsmithing Seminars, while I was stocking up a rifle and found it to be a really great tool. You can see him using it on his video where he is stocking a rifle. I'm not sure if I would bother with a rounded blade variety, as you are considering, however.