After searching for a little while, I found a cheap solution to mount a camera to my rifle. I bought a tripod adapter for my GoPro Hero 2 and a bicycle rail mount which fit my scope! It looks pretty good, and the rubber inserts on the mount makes it where it wont scratch your scope.
I haven't shot my rifle with it attached yet, but the recoil might make the camera move a little. Depending on the kind of rifle you have, and the recoil, this could be a great solution to taping your hunts, or just plinking. My scope is a Vortex Crossfire II 3-9x40. It is a 1 inch tube, so I'm not sure if this would work on a 30mm tube rifle scope.
Overall, this is a very cheap way to mount a camera to your scoped rifle. Let me know what you think, and if you have any questions about my setup. Here is the link for the mount.
http://www.amazon.com/CMP227-Motorcy...l+camera+mount