Quote Originally Posted by cheezie View Post
Luke45 is approximately correct. But a 6.5-06 will significantly outperform a 260AI and be the equal of the 6.5-284. And then there's the 6.5WSM, which trumps them all.
Not on my experience. 6.5-06 will perform exactly the same as a 6.5-284 right around 2950-3000 fps. The 260 Ackley will do the same 2950 quite easily with a lot less powder.