Didn't read the whole thread. Sub MOA load, High BC bullet good drop chart and turrets. I would not be afraid to push that gun on Pa ground gizz to 600 yards. Some cheaters in the field help. ie surveyors tape. Not to sound like a smart ass, but it is more about what you can do. How well can you read the wind, how well you read the animal meaning how long is that pig going to sit there. How good is your hold from the position you are shooting from. PA coyotes that is a solid 300 yard gun if you can hit a 4 inch target from that postion in that condition.

calm day on sticks, good light, dog hangs up 300yards. Wind rocking, frozen hands, twisted up cuase it came in from your right. Well then maybe not so far. You gotta be the judge