cameras for shooting range

Hi. We need some cameras with a large zoom for our shooting range. We tried different models but none of them

could zoom enough. We talked about ip cams but this won't work either. We need wired ones at least 2-3 mp and

720p for resolution. And if they are without color it doesn't matter. We hope that we can find some at a max price

100-150 $ for each camera. Is it possible or should we stay with the "old" solution scopes/analog telescope:)

The dvr we can get cheap here in Denmark but it is the cameras we want:)

Regards

Bo

Any one??? Any help would be appreciated:)