Woops, scratch that, didn’t see a 308 harrier on website.
None of the Ruger 308/762 autoloading rifles have seemed to have had a decent life span.
XGI never borne to the market, SR-762 piston gun short lived, SFAR gone quickly as well.
A friend took an early SFAR to use in a long range shooting course at a well known gun ranch. He ended up using a loaner gun and the smith there indicated there was an issue with the chambering, if I remember correctly insufficient leade in the throat of the rifiling.