I have a soft spot for "obsolete" guns and rounds. I cannot comment on the 222 round.
I can and will comment on the Rem 722. I chose it as the platform for my long range Varmint rifle In 1975.
I Still shoot my 257 Roberts after some 40 years.
Enjoy your rifle and ignore the gun scribes and those who are addicted to the latest and greatest.
Sometimes low tech is better than no tech.