Appeals court upholds Maryland ban on certain semiautomatic weapons 

A federal appeals court on Tuesday upheld Maryland’s ban on certain semiautomatic weapons, handing a win to gun control advocates in a closely watched Second Amendment case.

In a 10-5 vote, the full 4th U.S. Circuit Court of Appeals found that Maryland’s law complies with the Supreme Court’s recent expansion of gun rights.

“We decline to wield the Constitution to declare that military-style armaments which have become primary instruments of mass killing and terrorist attacks in...