Construction is expected to begin next month on gunmaker Beretta USA’s “new home” in Gallatin. Hundreds of state and local officials joined with representatives of Beretta USA Corp. Thursday to break ground on the company’s 156,000-square-foot manufacturing facility. It will be built on 100 acres in the second phase of the Gallatin Industrial Center. “We are not a company that builds a manufacturing facility every day,” said Franco Gussalli Beretta, executive vice president. “Today we actually break ground on our new home. Beretta’s future in Tennessee is now a reality.” In July, Beretta USA announced its plans to move all of its manufacturing from Maryland to Tennessee, due in part to the possibility of new restrictions on the company’s ability to produce guns in Maryland. The decision came just six months after the company announced it would invest $45 million in building a new production and research and development facility in Gallatin for new guns lines, creating upwards of 300 jobs.