Most of my stalking is under 200 yards and I use a Zeiss 6x42 on my .308 Sako 75 which I find more than adequate.
That said, if I was buying new and money was no object I'd probably go 8x56 so that the scope was a closer match to my binoculars (Swaro 8.5x42's). I read somewhere - and it strikes me as eminently sensible - that ideally you should have a matching sight picture between your scope and your binos.
There's another thread running at the moment about optics, saying that Zeiss, Swaro and S&B are all reducing their warranties from 30 years to 10 years. If this is the case, I'd be very tempted to go for the Leupold M8 series of fixed scopes. I've bought 2 in the US for stalking colleagues over here, and they are cracking scopes for the money.
willie_gunn