As a big burris fan id say that the glass is not quite as good as the 4200 to be honest (i own both). Where the burris scores is that it is easy to distinguish between 50-55 yards as the gaps are bigger and it has a greater field of view. There are a lot of tired burris scopes out there as they have not been made for years, most lose their clicks on the top turrets. The 4200 is a safe bet!!
Neale who has posted on this thread went from a leupold mk4 (the best one i have ever seen/used) to the bushnells so they cant be that bad!!