I'm not fond of see thru rings, they tend to have your cheek way to high off the stock when sighting through the scope, which affects accuracy. If your auto loader is a 740, or 742, you could look for a set of Weaver pivot rings and base(they're not manufactured anymore) on ebay, the base you want is Weaver # 162. If it's a 7400, you're out of luck, Weaver didn't make a pivot base for the 7400 so your only 2 options would be see thru or QD rings. If you're bent on trying see thru, and you have a 7400, don't buy them, I have a set I got on a used 7400, and I'll never use them, I'll ship them to you if you want to try them, but I think, like me, you'll take them right off and never use them. Let me know.
Garry