The U.S. Supreme Court turned down an appeal that questioned Delaware’s ban on assault-style rifles and large-capacity magazines. The court also turned down a case about Maryland’s handgun licensing requirements.

In this way, the Court avoided dealing with two important cases involving the controversial issue of gun rights.

A group of gun owners and gun rights groups tried to appeal to the justices, but they turned them down. They wanted to stop Delaware’s ban on “assault weapons” and magazines that can hold more than 17 rounds. The ruling was after a lower court decided not to issue a preliminary injunction.

Reuters said that these kinds of guns have been used in several mass shootings in the U.S., but FBI crime statistics indicate that handguns are used in the vast majority of gun-related murders.

The gun rights group Maryland Shall Issue and other plaintiffs also appealed, but the justices did not hear it. They were contesting a lower court’s ruling that the state’s licensing law aligned with the Second Amendment’s right to keep and bear weapons.

The justices chose not to hear these two cases, but they did not rule on two other appeals that were against Maryland’s ban on assault weapons and one in Rhode Island that was against the state’s ban on large-capacity magazines.