** Shares of DroneShield DRO.AX rise as much as 8.9% to A$4.170, their biggest intraday pct gain since October 21
** Shares are biggest percentage gainers in the benchmark .AXJO index
** Co receives A$25.3 million ($16.44 million) contract with a private in-country reseller to supply products for a government defence customer in Latin America
** Stock up 400% this year, including the day's move
($1 = 1.5389 Australian dollars)
(Reporting by Roushni Nair in Bengaluru)
((Roushni.Nair@thomsonreuters.com))