The four models in the CZ 600 series are affordable, accurate and innovative—and mark a bold new direction for the Czech rifle maker.
www.outdoorlife.com
Let's talk CZ 600 series tech specs. Some interesting design decisions there.
View attachment 2762882
They're going for the whole changeable barrels thing which resulted in them using a non-threaded barrel that locks into the receiver with three screws, allowing for easy barrel changes. To avoid headspacing issues and to reduce load on the receiver they went with an AR/AK-like lockup system where the bolt has six (or three for mini actions) lugs that lock into cutouts in the barrel, rather than the receiver like in most bolt actions.
What I was wondering is, since they mentioned using aluminum receivers for some models, any concern of the steel bolt/barrel assembly loosening up the opening in the aluminum receiver after a couple of thousand of rounds? I figure if the bolt/barrel are impacting against the alum. receiver which also has a heavy optic mounted on it, eventually that would introduce some play.