Lately thinking I would rather have too little scope than too much. Realistically with a 1-6X first focal plane, you should be good with a 308AR to 300- 400 yards, and be able to compensate for bullet drop, provided the recticle is fine enough. How often are you going to need something farther? If you did it might be time for the bull barrel bolt actions, if for no other reason than you won't want to be spraying lead around indiscriminately if the target is that far away. Seems to me the fast target acquisition of the smaller scopes would be more of an advantage in a LEO environment.