FS: Custom made for Winchester M/52 Sporter, these utilize Talley rings and have a "tunnel" which allows use of the receiver sight as well. I made these for a 52 Sporter I had several years ago, e-mail me at: bobtwining
sbcglobal.net for a pic and hole spacing dimensions. These would make a neat addition to your custom sporter build. Asking $55.00 OBO shipped.