The simple answer would be maybe???
Some manufacturers may put the scopes at their optical center as thats where the image quality is best, but once mounted to a rifle that changes depending on your setup (canted base, height above bore, etc). Unless you come across a limited range on elevation clicks after you zero, I wouldn't worry about it. I just mount the scope, get it zero'd and shoot. Sometimes I crank the elevation turret "up" after zero and usually I find that I have more than enough.