A federal judge has refused to halt enforcement of New Jersey’s ban on large-capacity firearm magazines, prompting the plaintiffs who filed a challenge to the law to appeal to the U.S. Court of Appeals for the Third Circuit.

U.S. District Judge Peter Sheridan of the District of New Jersey ruled on Sept. 28 that the plaintiffs in Association of New Jersey Rifle & Pistol Clubs v. Grewal are unlikely to succeed on the merits of their arguments that limiting magazines to 10 rounds instead of 15 violates their rights under the Second, Fifth and 14th amendments. Lawyers for the plaintiffs appealed Sheridan’s ruling that same day.