In 1939 the U.S. Supreme Court heard the case United States v. Miller, ruling that through the National Firearms Act of 1934, Congress could regulate the interstate selling of a short barrel shotgun. The court stated that there was no evidence that a sawed off shotgun “has some reasonable relationship to the preservation or efficiency of a well regulated militia,” and thus “we cannot say that the Second Amendment guarantees the right to keep and bear such an instrument.”