** Regis Resources RRL.AX falls as much as 6.3% to A$4.19; marks biggest intraday pct loss since July 21
** Stock hits lowest since August 5
** Gold producer reports FY NPAT of A$254 mln (~$163 mln) vs year-ago loss of A$186 mln; misses Visible Alpha (VA) estimate of A$274.5 mln
** YTD, RRL gains 64.7%
($1 = A$1.5569)
(Reporting by Sneha Kumar in Bengaluru)
((Sneha.kumar@thomsonreuters.com;))