A federal judge has struck down a California law banning high-capacity gun magazines. U.S. District Judge Roger Benitez ruled Friday that California’s law was unconstitutional. It is the second time Benitez has truck down the law. The first time he struck it down an appeals court reversed his decision. The U.S. Supreme Court last year issued a new standard for interpreting gun laws. The court ordered the case to be heard again in light of that new standard. The case is one of four challenges to California’s gun laws that are pending in federal court. The other cases are about assault weapons ammunition purchases.