Hi mate, went through all this a few years ago, progressed from .22lr to .17hmr to .22hornet and finally .223 ! no need for a revisit but the feo ( right or wrong) may need to know reason for the change to centrefire, so best to give them a call prior to the change to explain! the other thing is that if your cert is now "open" condition they may insist on "closed" condition for the .223 for probationary period. if you have accompanied someone who hunts with a centre fire and if they would be willing to write a letter to confirm this they may waiver the probation period.
Hope this helps, goo