The trial of a Georgia gun shop, which Mayor Bloomberg has accused of selling a high volume of guns that were subsequently trafficked into New York City, has been postponed indefinitely.

The trial had been set to begin tomorrow at a U.S. District Court at Brooklyn.

The judge hearing the case, Jack Weinstein, had decided last week that he — and not a jury — would decide the case. That decision apparently discouraged the lawyer for the gun shop, John Renzulli, enough to default the case.

Mr. Renzulli, who has long accused Judge Weinstein of bias against the firearms industry, said that the default was a procedural maneuver to rush the case up to an appellate court to seek an order requiring Judge Weinstein to dismiss the case or hold a trial by jury. In an interview, he said that the gun store, Adventure Outdoors, would continue to fight the city’s lawsuit.

The city, however, counted the development as a win.

“This is an important victory for New Yorkers — as good as a win at trial,” Mr. Bloomberg said in a statement.