BROKE MINE MOUNTING ANOTHER SCOPE........WILLING TO BUY THE WHOLE BASE.......THE TWO SCREWS ADJUST REAR WINDAGE & HOLDS THE RING ONTO THE BASE. HAVE TRIED NEW REDFIELD, LEUPOLD AND BURRIS SCREWS BUT THEY ARE WRONG SIZE. NEED 8X32 THREAD; HEAD MEASURES .350 DIAMETER & SCREW IS .507 LONG....HELP??????????????? EMAIL ME DIRECT PLEASE chazgreen@wowway.com......as always, thanks/ Chaz