You got that right. Out to 300 yards which is out to about the max that the average hunter can hit the kill zone. 200 hundred may be close yet. When you exceed that range then there is some benefits to rifles like the 300 mags and such. And again, the calibers from 6.5 on up will all do the job in the hands of a decent hunter. I would not suggest that the gun companies stand still and not strive to make good products or new products, thats how we got where we are today. However, beyond 400 yards, things really get iffy and the hunter who can not practice at those ranges really should not even attempt such shots. Even practice won't remove the effects of wind heat vapors,altitude and animal movement and much more.