I got one of these EGW mounts and really like it. Simple, clean, and holds zero. Great way to put a modern scope on a vintage target rifle w/o drilling any holes. The one for a Winchester 52 worked just fine on my 75. Used some med. Burris Signature Z's to mount a Mueller 4x16x50
http://egw-guns.com/store/index.php?main_page=product_info&cPath=39_128&products_id=281
http://egw-guns.com/store/index.php?main_page=product_info&cPath=39_128&products_id=281