I ain't going to battle with it. Mine is very accurate out to 500 yards. It's just a fun gun to me to play and hunt with. If the zombies come I'll put a x6 on it ok.Being that the SCARs main advantage against the other 7.62 semiauto battle rifles is its weight combined with the fact that the gun experiences significant MOA shift at range, I would say going over a 6x battle scope isn't the way I would go.
If money isn't an issue, go with the Elcan SpectreDR in 1.5-6 with the 7.62 reticle. It will be more than enough for any battle rifle, be more durable and you can still spend the 2K+ you want to.