I was looking at my reloading book, and wondered if you would be able to rechamber a 22 hornet to 221 fireball. It looks like the fireball's case is .003 inches shorter, but other than that, it looks like it should clean up the old chamber nicely. The only other thing I wonder about is how would you go about redoing the extractor to work for the new case head. Thanks for answering my rambling.
~Amos