Yes, such a scope will greatly aid military and law enforcement shooters who have to get 100% accuracy regardless of any issues.
For competition, I think this will allow some folks to have a little bit of an edge. Granted, most folks aren't as accurate as their guns. But at the level of national (and some regional) shoots, the difference between first and third may be less than 1/8th MOA. This type of device could be the decider.
More concerning to me is that this scope could also aid what I have seen as a disturbing development within the rifle-shooting community as a whole. The belief that it is not only OK, but completely ethical, to take overly-long shots on game has been an issue to me for a few years as the level of gun technology has increased while the dedication of many hunters to their sport has declined.
Back when I was young and ignorant (as opposed to being old and ignorant now), I took shots I should have let go. My lack of ethical behavior at the time still bothers me. I have seen and heard of other, more experienced shooters taking these shots. I can only guess they have been spurred on by articles and advertisements pushing that some new gun and ammunition can make them a modern equivalent of Carlos Hathcock or the fictional Matthew Quigley. I say, "nay, nay..."
- Practice, Practice, Practice... three zeroing rounds at the start of the season won't cut it. If nothing else, dryfire at a spot in the garage to practice - maybe even use the old dime/washer on the barrel trick to practice your trigger pull...
- Know your limits... How fit are you to fire offhand at a deer 200 yards away after running 50 yards? try this at the range sometime...
- Know your rifle... Do you have a range card? Is the ammo in your gun from the same lot? or did you just buy a different load from Wal-Mart?
- Know the range... Use a rangefinder or practice known range estimation. Do you stand hunt? try using ranging stakes set every 50 yards.
OK, that's enough on that...
Winchester .223 Law Enforcement ammo
Federal .45 Auto - various types - If you shoot .45 ACP, check this out - LOTS of product names here
OK, enough with that - Things to do.