33mm objective .. if I remember right, they went from 33 to 36 mm when they went from the rubber friction adjustment to click adjustment back around 1990. I had one of those older 33 mm objectives. Great scope. I bet I had 2 dozen different rifles under it over the years. One of the neat things about that scope is you could use Leupold's super low Ruger rings with it. The current 36mm objective won't quite clear. I mean it was LOW. .. I don't know if Leupold even offers those rings anymore that low.
