While I can respect Woodbeef's opinion on it being a "Battle Rifle", it is also a very decent little carbine if used in the proper circumstances.
I have shot mine ACCURATELY out to 300 meters with Iron Sights.
I would NOT recommend using it for anything further. While it can reach out further, the bullet drop is HUGE at longer distances. I recommend keeping it for under 200 yards, but if scoped up PROPERLY, and with a confident and accurate shooter behind it, I would not hesitate using it up to 300 meters. As long as you know the limitations of the cartridge.
Russian M43 Ball Ammo:
-----------------------
7.62x39mm (123g @ 2411 fps)
100 yards - 4.7" high
200 yards - 2.1" high
300 yards - 6.1" low
400 yards - 26.6" low
500 yards - 60" low
As you can see, its not much use past about 350 yards....
Most likely, the Soft Point ammo you would buy for hunting, will be loaded lighter than M43 Military Ball Ammo, so make sure you compensate accordingly.
I would strongly recommend using a fixed 4x or perhaps a fixed 6x scope for the CZ858. And zero it for 150 to 200 yards. The CZ858 can get about 2-3"MOA quite easily using quality ammunition, but of course every rifle may vary. I would expect a casual shooter using iron sights and no support can do 6" MOA out to 200-250 yards (I have done this in Service Rifle matches).
The Russian Military POSP series of scopes have a few made to match the 7.62x39mm cartridge, so if you go that route, make sure you get the correct one, as they make scopes with BDC's for other 7.62 calibres.
If you go the Long Eye Relief Scout Scope route, I would recommend perhaps a Leupold FX-II 4x28mm Handgun scope which can double as a LER Scout Scope. Just make sure that whatever scope you mount, that the ejected casings do NOT hit the scope! If the casings will not clear the action when ejected without hitting the scope, PLEASE get a case deflector!! (Even a modified piece of sheet metal strategically placed will do.) Otherwise you run a good risk of damaging or destroying the internals on your scope. This is why the BC Tactical, or the NEA top railed handguard setup work well with LER scopes. I started with a scout scope mount that replaced the rear sight on mine, and I ended up bashing an ACOG almost to death...
The NEA setup I have now is much better.
AGAIN, as Woodbeef stated, this is a Military Carbine! Not a Bench Rest shooter, nor a 1MOA 800 yard Hunting rifle.. Respect it for what it is, learn all you can about the action, rifle, and cartridge, and your abilities as a shooter, and have FUN!!!!
Cheers!
PS: Your best bet to find out EVERYTHING you can about scope mounting the CZ858, is to check out the Thread in the CanadianGunNutz "Red Rifles" Forum titled "VZ58: Optics, sights & mounts." Sign up and read it here:
http://www.canadiangunnutz.com/forum...d.php?t=277294
BC Tactical Scout Mount with Bushnell TRS25:
NEA Cantilever Mount with Railed Stock Adapter:
Russian POSP Scope and QR Mount:
NEA Railed Top Handguard with Bushnell TRS25: