I'm shooting the 210gr Berger in my Weatherby 30/378 and they are ridiculously accurate. I'm also planning on trying the 215gr, and I'm sure Broz will chime in on their effectiveness.
You cannot go wrong with any of those scope options. I'm a huge fan of nightforce, and recommend them highly. Their customer service is fantastic as well.
Get a good rangefinder, and a tool for measuring the atmosphere... Many use the Kestrel
. The Shooter app for iPhone is a must. It will allow you to dial up your shots.
Last, get out and practice. It's a lot more difficult once you start stretching out beyond 1000. Verify your bullet drops, and shoot.