Compared to the two other St Hallett Shiraz offerings, the 2016 Old Block Shiraz delivers an extra level of intensity. Mixed red and black berry fruit comes across as a bit tart and structured, clearly meant for aging. It's full-bodied but angular at this age, with the fine-grained tannins showing a bit too prominently for current consumption. Despite the name, it's actually a blend of old-vine parcels in both the Barossa Valley (51%) and Eden Valley (49%), the youngest having been planted in 1963, while the oldest dates to 1856.