So, where can I find info on this new 6.8x43? Any google search yields 6.8spc pages. I am interested in this possibility of the new 6.8, I have an AR15 lower and can be patient if it means waiting for a new/improved version of the 6.8. I know that it seems like the old guns won't be able to fire the new 6.8, any word if the new rifles will fire the older round?