I ended up rather quickly with a load that produced a 1.2 inch 4 shot group at 212 yards, at 2695 FPS. Very low extreme spread, all 4 shots were in the 2690s. Remington 700, 22 inch barrel, CCI 250, 66 grains CFE223, bullet seated so base and rear two driving bands in case mouth. I didn't measure OAL. I intend to shoot a few more groups before settling 100% on this load, but it is very promising. This is with a 2-7 scope as well.I've always been a fan of 225g bullets for my Whelen but never used CFE223 so I'm going to try some this spring, care to share your recipe