Actually Ruger makes two different sets of offset rings. One set is as you stated - a regular ring and an offset one. They other set has both rings extended.
See their website under Accessories:
90140 S100RMO MEDIUM 1" Single Offset Rings Blued Steel $ 63.55
90141 S100RMOO MEDIUM 1" Double Offset Rings Blued Steel $ 63.55
Be warned - these things are HEAVY. I bought the S100RMO single offset rings and they weigh 4 ounces each - that's 1/2 pound just for scope mounts.
I've checked and Leupold does not make offset rings for Rugers, at least not #1's. Don't know about Burris but I don't believe they make an offset set either.
Leupod does make low rings for the #1 and I would recommend them over the Ruger product if you can find a scope to fit.
I went through this exact same scenario with my 1A in 7X57 - use the Search feature above and look for "Pretty Woman" or "7X57" with my handle and this will find several posts addressing the topic of scopes that fit the #1 with proper eye relief.
Again, be aware that there just plain ain't that many scopes that fit #1's with open sights and provide proper eye relief. They are out there, just not that many of them.
