hi there...anyone know a easy way to get the reddish "knots" out of a wood stock, some of it is easy to sand away..other parts of the outer circle of the reddish "knots" stay shiney etc...whats a quick way to get rid of it...also its  a natural wood finish, was staind, i oven cleanered it, and sanded it, i want it to be a low luster natural wood color...whats the best way to do this?
its mak 90 7.62x39