As an aside , Leica have been manufacturing microscopes in china for few years to compete in the bottom end of the market. Quality looks ok on the outside. But not a patch on the old stuff inside.
High end scopes not only have good glass, but also fine build tolerances internally for accurate adjustment.
"Shooters, regardless of their preferred quarry, enjoy their sport for its ability to transfer them from their day-to-day life into a world where they can lose themselves for a few hours". B Potts.