It's a SR9, that didn't fall into the original serial-number range [AFAIK]. I've had probably 6-8 SR9's [T and TC's, also] and this one is more accurate than the others were. Probably my most accurate 308. I was shooting it at a hundred, and kept 3/4 to 1" vertical strings with it [with my old self]. I currently own 5 AR-10's and 5 HK's in 308.
It would be easy to fake the stamps, but I've never rolled that way.