Hmmm... I see what you mean now that I went back to look again at their grading descriptions. However, I noticed that my barrel has been stamped "NM", which I assumed meant "New Manufacture". Either way, I'm happy! At worst, I have a "Service Grade Springfield Special", and at best I have a "Special Grade". Either one is an upgrade from the one I sent in for exchange (just a Service Grade Springfield).
NM = National Match
Hang on to that rifle!
(And log it into your C&R record book, as all C&R eligible firearms you acquire must be logged into it whether you use the C&R to obtain it or not.)