I don't know about that. You can't shoot a group with a photo.
For photos of the standard factory finish you might try making a photo outdoors but in the shade and see how that turns out with your particular camera.
I've never been very happy with my photos of the refinished guns because the feature of the grain doesn't come through very well in most of the photos. The two refinished guns above, for example, look kind of "dead" in the photos but not in person. The special factory finish on the American needs more light than in the above photo but I snapped that photo one day when it was raining so no outdoor setting.