Had a custom 700 by SG&Y that someone originally owned. Shot great. Love the FB but if doing a build today, would seriously look at the 222.
Either are very capable of doing a lot of chores. Good luck on the build. Oh, btw, ejection was not great, nor extraction positive, it was not a 221 originally............
To me, a 222 could be considered a Fireball Improved, without the cool name. My .02
How about the name of Fireball MAGNUM? Would that work out better? or Fireball MAGNUM A.I. ?