Winchester Ammunition USA WHITE BOX, 45 ACP, 230 Grain, Full Metal Jacket, 100 Round Box USAV45A Winchester celebrates its commitment to American freedom with the USA VALOR ammunition series. From World War I through modern day deployments, Winchester remains steadfast in its support of U.S. Warfighters as the largest small caliber enterprise in the world. Winchester's USA VALOR Series helps support a U.S. Veteran's cause that can be found at Winchester.com/USAValor.