Re: Gettin\' a new gun
The set up sounds good. You mentioned getting to 1000 yards, however I am not sure what else you want to use the rifle for. 7mm mag can handle all North American game and make the trip to 1000 yards.
I think that a 300 mag, or a 300 RUM would be better suited for the 1000 yard work since there are heavier bullets (better for the wind) and a larger selection of bullets in .30 caliber.
Just my opinion.........
"A tie is as good as a loss, and no one remembers second place."