Nikon. A Monarch 3x9 should be close to your $300 top end price. Great scope for the money and in that same price point, much clearer and brighter than either a Leupold or Zeiss in my opinion. I've got one on my Ruger No. 1 45-70 and scope has held up well to the recoil and has retained it's zero.
If that is still a bit much for you, the Nikon Buckmaster is a good choice as well.