Question: how many calories in a shot of 100 proof bourbon?
Answer: Old Forester Signature is 100 proof which means it has 50% pure alcohol. Because the alcohol content is high, it also means the calories are too. A 1.5 ounce pour (a shot) contains about 124 calories, but "most bourbon is around 80 proof and a typical shot contains around 97 calories," according to Lictenberger.