We have a Steyr scout rifle in our shop in .376 Steyer, and it's a really nice, really expensive gun. It's got a Leupold long-eye relief scope on it, which is crystal clear. It has a built in bipod, extra magazine storage, and is a well thought out firearm. Problem is that it's practicality is overrun by both it's price and the caliber it's in.
Personally, I have no love for shooting something that tries to break my shoulder every time I pull the trigger, and the light weight and caliber of this gun make it prohibitive to shoot for that reason. In .308, it' would be usable.
I've played with this particular firearm on a number of occasions, and I find it to be very easily handled and convenient to work with as a carbine... but there are lots of other rifles that I've handled that were just as easy to handle and "acquire the target" with close optics, so I'm not sold on the "scout scope" for any type of advantage in "speed shooting". I would give it a gold star for being an "offhand shooting" rifle, but for anything that required "particular" sighting, like off the bipod, I'll take any of my other guns and make it outperform this puppy.
The rifle IS light and easy to handle, which is true of a lot of different firearms, and unless the "scout" is related to hunting, a good .223/5.56 AR with some optics would be far superior, in both ease of handling and firepower. In 6.8, it would be even more superior.
Jeff Cooper had a good idea, but it was kind of focused on the guns that were in production at the time. Clearly the carbines were easier to handle, and the scoped rifles gave a better range for shooting, and utilizing the "scout scope" concept allowed someone shooting the rifle to have a good field of view while engaging the optics. As for it's practicality in solving all the issues it's supposed to solve, I think it falls short because technology has soared past the concept, and there are dozens of other answers to that same bundle of questions.
WT