I don't care if you've paid $3000.00 or $300,000.00 for a rifle, you have to expect at least that it will chamber the cartridge it was designed for and fire that cartridge through a barrel with hunting accuracy to 100yds or so.

Contact first the dealer that sold the rifle and insist that he replaces it. If you have no joy there Contact CZ and raise the matter with them.

The price difference can get you better wood, better fit, smoother action, better finish, better accuracy. BUT a rifle must be a rifle in its basic function.

If neither the dealer or CZ will help, go to the police and file a complaint for theft. They have stolen your money.

As a note, the 505's were never in the past a mass produced item. They are a bitch to get to feed as the action is marginally sized for them. If you want one on a mauser style action then best to get a gunmaker to build one from scratch. They would be better on a pushfeed.

Regards