As I said to Stu, all a small group off in the wilderness means is that the shooter bought or built a consistent load that his gun likes. It doesn't tell us if he understands the ballistic path of the load's bullet, if he can read and compensate for distance and wind, or even if he knows how to operate the gun's sighting system. Those things (which some might argue are more difficult than just coming up with a load the gun likes) are not in evidence.