If I was looking for a good accurate rifle for under $1000.00, I would look at the new Savage with the accustock, or the tikka T3. Irregardless of what others say, good servicable scopes that won't let you down (optically or mechanically) can be had for about $200.00............it's best to spend a litle less money at the start, and find out what your own needs and preferences are, then to drop a wad on a scope just because someone else said to do so.
What are you going to use the rifle for other than shooting sub MOA groups? This would dictate the caliber that suited you the most. The 270win has less recoil than the 30-06, but the 30-06 is better suited to taking moose and elk. The 243 has less recoil than the 270win, and due to bullet selection, it may be a better target rifle.............get my point?
Mike