I have started looking at the .243 also. I may go with it. It is more than tan the .223, higher BC with the bullets Id use (85 to 95gr). not as good as the 7mm-08 but I'll hold off on that one.
Any load ideas for a 24" barrel? I'm thinking 95gr. Sierra matchking bthp; 87gr Vmax; 85gr speer...