Ammunition Supply Chain Act

S 4163, the Ammunition Supply Chain Act, requires the Secretary of the Army to submit a report within 180 days of enactment on U.S. supply chain vulnerabilities for nitrocellulose and related components used in ammunition manufacturing. The report must address improving sourcing of smokeless gunpowder materials, reducing single-point failure risks in facilities, mitigating disruptions from global demand, and leveraging private sector capacity. This bill directly affects the Department of Defense and ammunition manufacturers by mandating an assessment of supply chain risks. It does not enact new policy but requires a detailed evaluation to strengthen ammunition production reliability.