I would NOT let that number scare me... 0.5 MOA at 300 yards is a consistent 1.57" group. "Can shoot" is often just an extrapolation. "Does shoot" is quite different. I'd pay money to see that happen. I don't know that there is even ammo available that is capable of that, even without wind...If a person wanted to get a little more serious long range gun, what would you buy? Ruger, bergara, tika...?
I heard there may be a guy at this shoot with a custom that can shoot .5 moa at 300 yards. I'm not ready to go that far into this rabbit hole lol