For my Tikka I used the plain ol' weaver two-piece bases and Millet rings. I am shooting a 7mm so recoil is not extreme, but so far this has worked out very well for me. Weaver makes rings that fit the Tikka well. The plus side is the setup cost less than $30 to boot.
Try
http://www.midwayusa.com they should have the bases and rings.