I don't understand the AI craze. If you want more power from your 223 go a step up like 22 250 or 243. The AI stuff is overrated and doesn't feed well unless you have a single stack mag.
AI is all about being able to get more performance from what you already have in terms of bolt face and brass. Personally, I don't use magazines for anything except hunting because of the bullets I use.
If you try and rationalize why one cartridge has more appeal than another, you'll go nuts. Trying something different and then defending your choices to the bitter end are what this whole forum thing is all about.