The Spec. Ord. number dates it to.....
December 27, 1995.
I have not seen that specific Product Code or serial number prefix before. So it's not common. I have seen similar M629's from that same Era.
The Performance Center made a half dozen "Hunter" variations that each differed in small details. Porting, cylinder flutes, scope ring cuts, weights, sights....like that. Lew Horton had their hand in many of them (not all). Each variation had a unique p.c. and s/n prefix.
Post the L.H. letter when you get it. I'm very interested in what it will contain. The mid to late '90's was the pinical of the Performance Center's existence. You got one of the best revolves ever made.