Have a look at www.shortmags.org
According to a recent post on that forum the Kimbers have not been available up to now in WSM calibres .
I know they're being advertised .
Have seen a few posts about the Tikka T3 and everyone seems very impressed with their accuracy . Sako owns Tikka and they use the same barrels . Not sure whether the Sako WSM's are available in the U.S. yet?
They're not in Oz yet .
I've got a Model 70 featherweight in 7mm WSM that I would say is very average in terms of accuracy and finish .
Have had a Rem. 700 VSSF and Model 70 that have both been disappointing compared to my Sako . Kimbers might be better but I'm done with the other 2 .