The Montana costs as much as it does due to its lightweight, weatherproof materials - not for record breaking bench shooting accuracy. There are a lot of anecdotal stories of accuracy (and other) issues, primarily with the early models - consensus seems to be that newer ones are better when it comes to qc. There are all kinds of people that complain about their Sakos not getting the sub-MOA accuracy as well, so take that for what it's worth.
All that being said, if 1.5 MOA was all I got, that would still have no real-life impact in the field. The two pounds the rifle shaves off of most rifles certainly would be noticed however.