Zeiss z600 vs z800

[wildbillb02]

I have been looking at a Zeiss for a 7mag I am getting. My question is why does Zeiss say the 600 reticle is for non Magnum and the 800 for Magnum calibers?

 

[LittleCornball]

They will both work for you the 800 just gives you another 200 yds of range with your holdover once you have the magnification set to match the ballistics of your chosen load.