If you want to shoot game at 100,200,300,400,500,600,700,800,900,1000.......... you have to paper those ranges to be what I would call ethical. And not just in perfect conditions either shoot those ranges on windy days too. That is the only true way you know for sure what your bullet is doing.

"I shot my elk at 800 yards and held 12 inches over it's back" B.S.................... Doesn't take long to sort out those BS story's.