Rembo said:
first 223 I owned was a 700 rechambered from 222...it had the ring....
My first 223 had the ring also,was the most accurate 223 that I ever owned.The ring don't hurt anything just some guys seem get excited about it.
you're right River Rat.....nothing to get excited about...at least I could tell my brass from my buddy's when we were picking it out of the grass

...this was back in '91-'92...still have some of that brass here.......now a 223AI reamer will clean up a 222 chamber.....not that I would advise such a move however....