My buddy Frank and myself a few years ago stepped back to 95 yards on a McKenzie bedded buck 3D target (rangefinder verified) as that's as far as we could get in his yard........we adjusted our 3D sights to that range, and proceeded to drill about 9 out of 10 shots into at least the 8 ring (vitals) with quite a few 10's.
It is fun and darn good form practice, but in reality it's not much different than shooting at a closer range if you have a sight setting for that far........but when you step back into 20 yards or so and it feels like you could throw an arrow into the 10 ring.