You're pretty much in the ball park. The books often show more velocity but they are often done in longer barrels.
Are you after more velocity??
If so, you might also try BLC-2, Varget, and Benchrest.
IMO though, since you are pretty much at good useful velocities for the .223 it might be time to look more at accuracy than velocity. My own thoughts on the .223 are that I'll be happy with any velocity of 2850 fps or better as long as it's a best accuracy load. After all, what will you ever do with a .223 that is better done with max velocity than max accuracy? :grin: