I have owned quite a few rifles in both chamberings. No junkers, either. All shot very well indeed, but if I were to assemble all the results over the years, 222 vs 223, I am sure that a slight, but distinctive edge would go to the 222 in the accuracy department. Individual rifles will show exceptions of course. I once bought a 223 HB Remington that was uncannily accurate. However, at present I have a 700 Classic that is the same, or even better. It all boils down to the attraction of inexpensive practice ammo available for the 223. Regards, Eagleye.