The 6.5x55 SM is, in my opinion, one of the most accurate rounds out there. It is not magic to be able to shoot sub MOA groups (even with open sights) out to 300 m - that is, if the shooter can do it. I haven't seen a Tikka not shooting well yet! If you plan on shooting paper mostly, consider a heavy barrel Tikka like the Sporter, Varmint or Tactical, put a good scope on it, reload your ammo with good components and you will have a lot of fun out to 1000 yards or more.
As far as hunting at 1000 yard goes: I think it is pretty unethical! There are too many factors influencing your bullet during the flight time, to make it an ethical and humane kill shot. Unfortunately a lot of the forums one can find in cyberspace talk about "head shots only" at 700 yards and beyond. Considering the size of the brain of a deer or even moose, this would mean that those "snipers" and their guns are continuosly able to shoot 1/2 MOA groups, or less, at those long ranges. Check the worlds best benchrest shooters results (groupings) at the same distances and form your own opinion of what seems ralistic and what not.
Have a lot of fun with your new Sporter!