Re: Barrel preferance
A 7mag will do very well on elk at long range. Use a good bullet. There are a LOT of very good bbl makers. If you want a great bbl sooner than later, check Lilja's site for bbls he already has in stock.
I would not hesitate to use any of the following:
I got lucky when I called Krieger not long ago. They happen to have SS barrels in stock in 7mm, .277. I bought them all. I left the 338 bbl but referred another to Krieger and he bought it.
Obermeyer, Bartlein, and Broughton offer the canted or Russian style lands. I just ordered a Bartlein in 6.5 5R a couple of weeks ago for a 6.5x284.
I'll have an Obermeyer in a 308 hopefully very soon. The rifle should be just about finished.