From Bearing Arms:

Gun owners have had a pretty good idea that Chief Justice John Roberts is reluctant to take a Second Amendment case for awhile now. First there was the Supreme Court’s mooting of a case dealing with a New York City gun law back in April, denying an opportunity for SCOTUS to once again weigh in on the right to keep and bear arms. That was followed in June by the refusal to hear any of the ten cases dealing with the Second Amendment that the Court had been considering in conference.