I limit myself to 150 yards, and I shoot a fair amount and know what my rifle will do at that yardarge. It is actually zeroed for that as a maximum distance ( it's zeroed at 130 and is 3 or 4 inches low at 150). It will also group fairly well at that distance (2 inches or so).

I do shoot out of an elevated blind with a wide ledge as a support, and it is over looking an open meadow that I now the yardages to each point. Plus I have a laser range finder. I wouldn't try this long of a shot out of a tree stand or off hand, I just don't shoot that well and I know it. But off from a decent rest at a relaxed deer it isn't much of a problem. And I shoot heavy bullets, so I am not worried about the down range energy. Truth be known though I haven't had to do it yet, most of my shots at this location come in at 70 or 80 yards.

Keep in mind it took some playing to get these results, and I know of others that can do better. I also know of many more that are worse. But one or two inch groups at 100 yards shouldn't be that hard with most common loads, as long as you do your part.

Paul