Under 90 Proof44 bottlesThis range covers bottles below 90 proof. Proof is twice the alcohol-by-volume percentage in the United States, so a bottle at 80 proof is 40% ABV.90–99.9 Proof131 bottlesThis range covers bottles from 90 proof up to, but not including, 100 proof. It is a common bottling range across bourbon, rye, Tennessee whiskey, and other American whiskey styles.100–109.9 Proof136 bottlesThis range starts at 100 proof, the required bottling proof for whiskey labeled Bottled-in-Bond, and continues through 109.9 proof.110–119.9 Proof49 bottlesThis range covers bottles from 110 proof up to, but not including, 120 proof. It includes both proofed-down releases and some barrel-strength or full-proof expressions.120+ Proof33 bottlesThis range covers bottles at 120 proof and above. Many barrel-proof releases appear here, although actual barrel entry, maturation, and bottling proofs vary by producer and release.