Get what fits.

And don't forget to look at the Weatherby Vanguard/Howa 1500 and the Tikka models...all very accurate and in your price range.

For a scope, just get the Burris Fullfield II with the free binoculars for $199. I've never seen a better deal on optics in history!

If it were me, I'd go Tikka T3 Lite Stainless in .270 Win. Great round for Eastern Montana (I've hunted there!) and will certainly be a terrific antelope rifle and will kill any elk that walks if you do your part.