Had the Ruger Ranch in 5.56.
Overall great rifle, but yes the bolt was making zipper sounds, which had somewhat smoothened out by working it back and forth everytime I was watching TV.
Accuracy was not bad from the 16 in barrel, considering the ammo I was using (mostly steel cased Barnaul and the white box Winchester 5.56), it was deffinitelly more accurate than the shooter (around 1 MOA).
The fact that it takes AR mags is a big pro to this rifle.
Had to cut couple of coils from the trigger return spring, as it was still pretty heavy even after maxing out on the factory adjustment...this resulted in about 2lbs trigger pull.
This rifle would feel great sitting in a Magpul stock/chassis, but I'm not sure if there is one available for this model.
Also, considering the price of this rifle, the stock would likely be almost just as expensive as the actual rifle.
Now the not so good:
This thing is LOUD...
With the 16 in barrel, this will likely be the loudest rifle on the range and the guys in the lanes beside you will not be too thrilled.
Also makes a great fireball to boot.
I had solved this issue by threading on a linear compensator...
To my surprise, this very much exceeded my expectations, as with the noise now being directed away from the shooter, at times I felt that I was firing a 22 with some hot ammo such as the CCI Stinger (this is not much of an exaggeration really).
But as they say, usually when you do a certain mod, you will sacrifice something else in another area.
In this case it was the accuracy...
The addition of the muzzle device must have shifted the balance and likely disrupted the harmonics of the barrel, as the best I could do now was about 3-4 MOA.
Still not bad for a light, handy carabine, but I can do that with a T97.
Another feature I was not crazy about was the mag release button...it is so far forward, that in order to reach it, you had to let go of your grip (maybe my fingers are extra short but I heard others complain about the same thing)
As I said before, overall not a bad rifle especially for a Scout project, but not perfect by any means.