I think there was some conjecture that it was the Schild Estate Barossa Valley Shiraz 2013. Not certain. Actually, strike that. I was just going off the price. This is a new one.
Might be this one: http://www.taylorswines.com.au/wine-collection/eighty-acres/shiraz/2013 . Again though, don't bet on it. Percent alcohol doesn't match up. 5 gold though. (But can't find a trophy for it.)
Aha -- must be this: http://www.jackestate.com/?method=products.productDrilldown&productID=AED58666-DA09-E855-A5D0-5A3A7C9FA8E8&originalMarketingURL=product/2013-Jack-Estate-Shiraz
Alcohol, trophy, medals, region, RRP, and inclusion in top 100 wines all match.