I have been doing this for about 3 years, you are better off catering to hunters that go on high end hunts such as Elk or Moose, the average guy doesn't want to pay what you would need to make just to have a video of his whitetail or turkey hunts around home................And i don't blame them, I wouldn't pay $250/day to have someone video tape my hunts around home (if I didn't use the footage for my show), but I would be willing to pay an experienced freelancer that price or more to capture an Elk hunt or something out of the ordinary that I don't do on a yearly basis.
Outfitters are your best connection, they have clients that want thier hunts videoed all the time and they usually aren't shy about paying.