Phosphorus32,
It does fire 7.62x39mm. The CZ website says it is made for steel case rounds but I don't know what that means as far as its construction. I was looking for a bolt action rifle that fired 7.62x39mm, mostly because I have a lot of it, and also because a rifle like L-C has (bench rest sks) is outside of my abilities! The trigger is great and in addition to its smooth operation, has a "set" trigger. You just push the trigger forward until it clicks, now it is a 2lb. trigger! When I was researching, I learned that the CZ was the only rifle with a bore of .311. Two other manufactures were making 7.62x39mm bolt rifles at the time, but apparently they had .308 barrels. I did not verify these measurements, and that was 2 years ago. I don't know if this is still the case today.
Thanks for looking!
John Galt