SCHAUMBURG, Ill.–(BUSINESS WIRE)–Global Brass and Copper Holdings, Inc. (NYSE:BRSS) (“GBC” or the “Company”) today announced the results for the first quarter ended March 31, 2017. First Quarter Operating Results Volume for the first quarter of 2017 increased 2.0% to 133.9 million pounds compared to 131.3 million pounds in the first quarter of 2016. Olin Brass delivered strong first quarter volumes as increased coinage volumes were partially offset by decreased munitions volumes. Chase contin