what proof is fireball

Fireball is a brand of cinnamon-flavored whiskey. The proof of a liquor is a measure of its alcohol content, and Fireball is available in two different proofs: 33 proof and 42 proof. The 33 proof version is a malt-based beverage with 16.5% alcohol by volume (ABV), while the 42 proof version is a wine-based product with 21% ABV. Fireball is not a true whiskey, as it is not made from a mash of fermented grain and aged in oak barrels.