I too like Renaissance Wax. It does the job over BLO as a top finish, and I use it every time I clean my guns. I keep a soft rag on top of the can, so it's handy to wipe down guns that someone handles in my shop. I imagine that wax would have been part of regular rifle maintenance. If a fellow needed his rifle re-varnished, I think he'd take it to a shop and have the lock overhauled and stock re-varnished.
