because you want to shoot roundball as well, I would go with the longer barrel. You're a young strong man so the additional length should not be a problem to you as far as balance. Besides, I like a longer barrel. They seem to balance better to me. It should be good for turkey out to 35 yards, maybe even more.
They have all grades of wood you can purchase... I've been looking at a .62 caliber with a rifled barrel for roundball shooting in the Colonial Smoothbore with a rifled barrel of course. I think that would make an excellent rifle for shooting. Of course I told myself no more rifles. Good thing I talked to them before I made that promise.. thenI can claim past preference.