The winery offers the folowing about this bottle:
The color of the 2021 Rattlesnake is near opaque purple. The nose is very intense, with blackberry pie, caramel, dark roast coffee, cola, and raspberry reduction pouring out of the glass. Under these intense aromatics hides some volcanic minerality and crushed violets. The wine is ultra rich, plush and powerful on the palate. Darker fruit comes out, mostly reduced cassis matched by intense dark chocolate. The tannins are big, chalky, and matched by the famous Spring Mountain acidity. Dark chocolate covered cherries linger on the finish. This is an intense powerful wine that is barely starting to show the myriad of flavors it has to offer 19-20 years.
Rated 96 pts by the Wine Advocate:
The 2021 Cabernet Sauvignon Rattlesnake Estate Bottled is a special effort, loaded with hedonistic black cherries and black raspberries, plus captivating hints of sage and mint. By far the most concentrated of the Barnett 2021s, it's full-bodied and rich yet somehow manages to be supple and elegant at the same time, with a long, refreshing finish. More approachable than might be expected for such a dark mountain wine, it shows no shortage of ripe tannins, suggesting at least two decades of potential longevity.