Wolf,,
Your group looks as if it's about 1 1/2 inches c/c. That ought to handle most hunting needs without a problem, and might be a good place to stop. If you're interested in accuracy for the sake of accuracy, I think you have a long way to go. The first step should, IMHO, be tuning your rifle with a good glass bedding of the action and chamber area of the barrel, as well as a trigger adjustment so it breaks cleanly and at a reasonable weight. Working up good loads should result in a three shot group where all three holes are very close to touching.
Varget has done it for me in my .308. So has H-4895. The search for accuracy will teach you a lot about your rifle and cartridge. Good luck and God bless.
Bob