** ASX shares of copper miners fall, tracking weakness in copper prices, weighed down by U.S.-China trade tensions and the U.S. government shutdown MET/L** ASX shares of Capstone Copper CSC.AX CS.TO fall as much as 6.3% to A$12.610, their lowest level since Sept 29** Sandfire Resources SFR.AX drops 2%** Local mining sub-index .AXMM down 0.4%

** YTD, Capstone stock up 39.8%, Sandfire up 66.5%

(Reporting by Nichiket Sunil in Bengaluru)

((nichiket.sunil@thomsonreuters.com))