I've had a 9000sc on a 12" G2 .44 for a short while, but long enough to find that the Aimpoint rings that came with it might work on a rifle but not a hard-kicking pistol. I got heavier Warne steel rings and everything now seems ok. BTW, it's a very nicely done barrel from MGM, highly recommend them over anything T/C.
I'm hoping to use the gun for short range deer and elk. The 2m dot is great for 50yd target shooting but I'll have to see how 1x is for judging antlers in dense woods.