BOSTON — Twin brothers from Hyannis have charged in a Boston federal court for allegedly being felons in possession of firearms and ammunition.U.S. Attorney Andrew Lelling says Di'lon Smith and Denzel Smith, both 25, have been charged with one count each of possession.The indictment alleges that in Nov. 2017, the brothers possessed a Smith & Wesson .22 caliber revolver, a second pistol and 24 rounds of ammunition.They face a maximum of 10 years in prison, three years of supervised release and a fine of up to $250,000.