Over the past few years I've heard some pretty crazy advice for sighting in my rile for deer hunting. I hunt mostly over a bait pile at about 50 yards, so why would I sight in my rifle 3 inches high at 75 or some such crazy thing? I figure I sight in my rifle dead on at fifty and see where it shoots at 100 and 25, just in case.
I never really got the "2 inches high at 100" idea either. Why not dead on at 100 and know where to compensate? It just doesn't seem to make sense to me why you would intentionally sight your rifle in so it didn't hit point of aim at a given distance. Besides, with most modern rifles the bullet doesn't drop too much from 50 to 100, or even out to 200 in many cases, I'm talking less than a foot here, so why does it matter so much for practical hunting applications?