This may be of interest to you.
I saw a gun today at a clayshoot that everyone was admiring.
It was a Browning Citori and it looked like Tiger stripes.
Stopped and enquired about the finish, the gentleman was most helpful.
Sanded right back to bare wood and then stained all over black (Olde English Oak) then sanded back a pattern to suit your personal taste using steel wool. Rub at various areas back to bare wood to a pattern you desire, let it dry then refinish stock with oil of your choice? Linseed or Tung. It really did look very good.