yes you can,!! as you have probably worked out they come as odd sets,as one is higher than the other i had a link that showed what you needed for what scope i'll see can i find it
hope this works
http://www.gunaccessorysupply.com/customer/inspin/images/pdf/Ruger_Ring_Fit_Chart.pdf
be warned from experience they are not cheap
Bob,
Make sure you check size - if it's for your Zeiss, you may get away with mediums - I'm pretty sure I only have highs with my Swaro 56obj lens - it's tight, but OK.
Complete chance, but ring Steve Beaty at Ivythorn Sporting - he did have a set knocking around.....
E t R
EtR it's very hard to get those lined up properly i found i was very disapointed with them , and so went back to factory ruger mounts as they are about as good as you can get, no change in poi even after taking the rings and scope off several times
nice rifle i seem to remember mine looking a bit like that once
EtR those rings won't work as you need two different heights for a 77mk2