Great shooting!!!!!!!
I absolutely LOVE Ruger 77 MK/IIs.
However, I HATE the terrible matte finish on the new Hawkeyes!
Rugers can be VERY accurate and they are built like tanks.
The only major problem I see with your rifle is you have a 1.5 lb trigger pull! That is WAY TOO LIGHT to be safe in my opinion.
clean barrell or dirty?
the trigger makes a huge difference. Had mine done like that.
put that thing in a pillar stock and it will drive roofing nails.
nice group germag my rifle usually spreads a little like that at 300 yards.
My mkII was the early one that came in that piece of junk skelaton stock. Any variation on temp and bolt torque really screwed it up.
The stock rubbed in places it shouldnt etc.
My first stock change was bedded and that helped. Then I found a composite fajen pillar stock for it right before they went out of business. Not sure about the theory ,but the pillar stock with floating barrell did dramatically improve the accuracy.