The Mossberg, Savage Axis, Remington 770 and Ruger American are the new generation of disposable rifles. They actually work pretty well, at least for a while. They are not long term values however. For about the extra cost of 2-3 boxes of ammo you can do much better. Being able to pick up a few extra boxes of ammo seems like a good deal right now, but you will quickly shoot up that ammo and realise you could have done better.
The Stevens 200, Weatherby Vanguard, Howa and TC Venture are all good choices. Of those I really like the TC the best.
Used guns are everywhere. A decent Remington 700 or Winchester 70 can often be found for $350 or less.