Here is a three round group at 100 yards though with my custom 300WM. Customizing the rifle might get you better results but I am still puzzled by he loss of accuracy.
Here is he same rifle at 302 yards(3 shot group) on a steel man sized target. Mind you, this was the builders competition rifle.
The center shot is hard to see, the other two bent he metal around it.
Close up of it