** Rumble Resources RTR.AX plunges as much as 30.3% to A$0.027, lowest since August 4
** Miner receives firm commitments to raise A$7 mln ($4.6 mln) via placement, A$2 mln via entitlement offer
** Issue price of A$0.025 under placement, entitlement offer represents 34.2% discount to last close
** Funds raised will be used to advance Western Queen Project
** About 14.7 mln shares traded, 14.4x the 30-day avg
** RTR last down 26.3%, taking YTD losses to 33.3%
($1 = A$1.5156)
(Reporting by Sherin Sunny in Bengaluru)
((Sherin.Sunny@thomsonreuters.com))