Listed here’s what they say: “CZ 600 rifles have been intended to enable the users to replace the barrels themselves to change the caliber. CZ has discovered that When the barrel is improperly installed, it is achievable the rifle could nonetheless be fired, but most likely cause a failure.”The four models inside the CZ 600 series are afforda

This suggests variation from 1 bolt head to the following is minimal. CZ has no problems holding headspace between any bolt head and any barrel. This arrangement leaves the door open for CZ to sell barrels, bolt heads and magazines that enable any rifle for being re-­chambered in almost any cartridge that matches the action’s length. Think of it