Last time i played at my local site the FPS was 328(?) i think. I had a G-Spec shooting 327.8, and it was pointless using it. If i wasn't being out ranged by non-krono guns, i was putting 1 round their way, they were sending me 10.
I'm going to put my neck on the line here and say that sniping and airsofting, generally, don't mix. Not pure sniping, anyway. "Combat Sniping", as i call it - running around with a powerful, semiautomatic scoped weapon is fine, but sitting at the back waiting for that one perfect shot? Nah. Not in my experience.