I had some trouble getting a Berger bullet to shoot acceptably in a 6.5x284 so I went to their site. (never read the instructions)...
On their home page you'll find the Resources tab and Making it Shoot is there.
It's basically the same info that Tim K posted and it was what I needed for the Berger bullets but it works with others of course.

Let us know what you figure out!

"Camping places fix themselves in your mind as if you had spent long periods of your life in them.
You will remember a curve of your wagon track in the grass of the plain like the features of a friend."
Isak Dinesen