Like I said, If you don't hunt in the Southeast you'll never get it. I don't know what you call long range, but to me, it's past 300. And while your busy wondering what you could've done different, I'll be taking pictures with my trophy.
I have lived on the east coast, and I know what the hunting is like. I have never been in an area there where I felt I needed a 300 Win Mag. Now that isn't saying that you can't use one, but you aren't using it in the way most around here would feel is long range, that is usually 600+ and there are guys here regularly shooting past 1000 yards. I'm not quite on that level yet, but 450 yards on a mule deer in Colorado felt like a chip shot.
To me, "long range" requires time to set up, range the animal, calculate drop and wind, and dial in the trajectory. Shots are never made on running animals, and if the conditions aren't right, I won't make the shot. Putting in ear protection is part of my routine.