"stretch the range to 250-300 yards"
Really ?
I try to not shoot that far with a centrefire !
One spot here is just an open field and another spot we hunt the most is prairie and coulees. The typical shot is 125-175 yards. We scare off 90% of the deer still hunting the coulees but still get deer.
I was looking at a couple hills that I could set up a blind and wait for the deer to come in but it would be at the longer range but the deer would not even know the hunter was there.