Thanks guys.

Great info. The reason why I am saying 400 yards is that I am using the rifle for walk and stalk hunting and we do hunt places like Namibia where you have open spaces that offer longer shots. I know I could have posted the question in the hunting rifle section but I thought that I will get a clear answer here. I want to avoid shots past 400 yards as the only rest I will use would probably be a tree. I just do not want to limit the rifles' capabilities.

Pieter