I believe Burris made the first "scout" scopes. I have a 2.75XS20 mounted on a Swede Mauser that I purchased at least a dozen years ago, maybe more. When Cooper started getting his scout concept accepted, I seem to recall that Burris was the only and first one making such a scope. (Not entirely sure of this, but I believe the Leupold came later.) I really can find no fault with the Burris, but mine does have a pretty thin plex. I think they are more of a duplex now. I may also try a Leupold someday as they get very good reviews and Leupold is a quality product, but the Burris is also a good scope and costs somewhat less.
Another option to save some $$$ and maybe get just as good is the Nikon Monarch EER 2X20 handgun scope, which will work fine. This scope has parallax adjustment set for 100 yards to be used as a scout scope, and is tough, petite, and with good optics. The Optic Zone (a GBO sponsor) has them for $159, and you can see that it is recommended for scout rifle duty as well.