We've pretty much used that as our standard. The maximum distance we would shoot is where we could consistently get 7 pellets in the head/neck region.

My gun--which is used for everything from deer to turkeys (with different chcokes) gets 7 or better at that range. My friend's new gun just shot about 40 pellets tightly into there from the same range. I was very impressed, but can't afford a new gun just yet.