Re: Thousand yard options
The 300 win with an excellent bullet like the 215 Berger is very hard to beat for an all round 1000 yard rifle. I've very easily and cleanly taken elk out to nearly the 1000 yard range with my 270 WSM loaded with 165 matrix bullet.
I would start by picking a bullet or two then see what chambering gets it done for you.
"Pain is weakness leaving your body"