I got a like new CZ 527 in jan 2008.
Two weeks later I took it to the range and blew the face off the bolt.
I had to buy a new bolt. I have not bothered shooting it since.

There is nothing noble in being superior to your fellow man; true nobility is being superior to your former self. -Ernest Hemingway
The man who makes no mistakes does not usually make anything.-- Edward John Phelps