Making a list for the gun show tomorrow--Has anyone tried 8208XBR behind 69 gr SMK in the 223 AI? How about 52-53 gr SMKs? What are your thoughts? How about any other favorite powders in this round? So far Varget has been the best for me--I also have Reloder Varmint, 10x and RE 15 that I'm hoping to try. Looking for help on this round--does the 222 rem mag have a similar case capacity and can the load data be extrapolated for the 223 AI?

You thoughts and comments would be appreciated. Steve