Any factory rifle out of the box that shoots as good as yours is exceptional.
If you getting vertical stringing then you either have too much torque on the front action screw or you may need to releave a tad of wood from the front portion of the forend. You may have a bind somewhere due to bedding. Glass bedding usually helps any factory rifle. If you want to send me pictures of your stringing groups (ray
atkinsonhunting.com) I can tell you what you need to do to the bedding as groups are pattern equated to bedding. As a stock maker I deal with this all the time.
