The second target is largest three shot group I have fired so far from my Mark V Custom 30-06. This is 165gr GK HPBT in front of 59grs H4350 moving 2953fps on average. The squares on the target are one inch squares to give you a reference point. Once again, this is my largest group with this load.
Smallest three shot group (first and third round went through the bottom hole as you can see it is a little larger)
Largest three shot group