** Redcastle Resources RC1.AX jumps as much as 15.6% to A$0.185; marks steepest intraday pct gain since February 11
** Stock hits highest since February 24
** Diversified miner reports multiple thick, high-grade gold intercepts at Redcastle Reef deposit in co's Redcastle project area in Victoria
** Says drilling results provide "high level of confidence" in geological model, continuity of mineralisation across planned mining area
** YTD, RC1 soars 77.1%
(Reporting by Nikita Maria Jino in Bengaluru)
((Nikita.Jino@thomsonreuters.com;))