Milling Wheat  Large supplies and strong exports of wheat from the Black Sea and Russia continue to cap upside potential for wheat. U.S. and EU markets rallied last week until late in the week, when they hit a combination of technical pressure and increased competition from the Black Sea.  Chicago futures rallied to their highest levels since December last week, with winter wheat and winterkill concerns in the U.S., and South American heat stress, driving the rally. A sharply weaker U.S. dollar also boosted futures while weighing on UK and EU futures.  EU wheat futures are recovering from last week’s pressure (brought on by the strong euro and large old-crop stocks, with export forecasts seemingly revised lower each wee...