Barrel-proof bourbon whiskey tends to be big and bold. But with that said, “barrel proof” or “cask strength” isn’t a single designation like “bottled in bond” (which has to be 100 proof 50 percent ABV), it can be anything from 40 percent ABV — alcohol by volume — to well over 70 percent ABV (that’s 80 proof to 140 proof and above). It’s simply the proof that the whiskey came out of the barrel (assuming it was then bottled without any cutting with water to lower that proof).
Here is a list of 12 new barrel-proof bourbon whiskeys against each other in a blind test.
For more information: https://uproxx.com/life/best-barrel-proof-bourbon-whiskey-blind-taste-2022/