I would have to agree. I shoot high power and the 10 ring is a little over 2moa- we shoot our standing position at 200 yards. On a good day I can score in the high 90' s usually 97-98 from this position, on a bad day I' ll shoot shot somewhere in the high 80' s to low 90' s. This means I' m hitting a target about 1/3 the size of a deers vitals 8 0r 9 shots out of 10. I can shoot better standing with iron sights than most people in the woods can shoot from a benchrest using a scoped sporting rifle. With that said, I wouldn' t take a standing shot on a deer at that range- too much adrenalin, not enough time to make the shot, and not worth risking the shot.

If I were able to shoot prone or from some sort of solid rest with a properly sighted rifle, I wouldn' t have too many qualms about taking shots out to 400-500 yards provided that the deer wasn' t moving and there wasn' t any wind.