Thanks, guys. Hope I don't disappoint anyone, but it's not a PSG1.
It's actually an SR9T, "T" meaning target, I guess. They started with a hand selected SR9 reciever, Poly barrel, PSG1 trigger group and grip, MSG90 stock. They were set to import 250 of them, but imports were frozen when somebody called BS on the "It's a target rifle, so we can put a pistol grip on it, OK?" Not sure how many made it in, but it's kinda rare. I think the SR9TC is even rarer, that's the same rifle with a PSG1 butt instead of my MSG90.
I figure it's about 85% of a PSG1.
With my handloads, I covered my last 5 shot 100 yard group with a 1/2" pastie, that's with a flyer.
Best so far is a 9 shot .9" group at 100. I've also hit steel at 800, not sure how it was grouping, though.
It's way better than I am.