The 9th U.S. Circuit Court of Appeals, however, ruled that a hunting license requirement for purchases of rifles or shotguns by adults under 21 who are not in the military or law enforcement was reasonable A U.S. appeals court on Wednesday ruled that California's ban on the sale of semiautomatic weapons to adults under 21 is unconstitutional, a move gun-rights advocates hope will pave the way for similar rulings in other courts. The San Francisco-based 9th U.S. Circuit Court of Appeals said the law violates the Second Amendment and that a San Diego judge should have blocked what is called...