The Foundation: Built on the 10x March-X Platform The March-X platform , particularly the 5–50×56 and 8–80×56 , established the 10x zoom architecture that would define the series. Those scopes proved that high magnification did not have to come at the expense of mechanical integrity. They tracked. They held zero. They survived real competition. The 10-60X56 HM would later bring Super-ED glass which earned trust in F-Class, Benchrest, and Field Target circles not because t