I have been using Warnes on both my Sakos and Tikkas and they flat out work.
a bit of a pain to install, but no biggie
I just got a set of Talleys and installed on my 308 Tikka
very clean and easy, I like em...
one thing I have came across is that they run a bit on the tall size:
for example, the med is .5" from top of the receiver to the bottom of the scope rail which is what most companies (warne for example) call a high
so, with the med I was able to put a 56mm objective Weaver Classic Extreme illuminated 30mm scope and have an 1/8" clearance between bell and barrel