Quote Originally Posted by Texas10 View Post
Maybe you're right, R.H. but I never thought of burnishing as a step that produces a pattern in the metal, but rather smooths out any irregularities. The front face of my actions all have a pattern pressed into the steel. You can see evidence of metal being moved by the burr on the outer edge of the face. When I lap it, I sand just enough to remove most of pattern and the burr. If there are any low or high points, they show up immediately.
I think those marks are left from the chop saw they use