Old Grand-Dad® 114 Proof. 114 proof 57% alc/vol. Kentucky straight bourbon whiskey. Old Grand-Dad® 114 is made from a unique recipe that uses more of the costly small grains which create a distinctive flavor and body. This fine bourbon is bottled at 114 proof, to preserve every drop of that unique character. Look for a lot number on each bottle signifying the authenticity of Old Grand-Dad 114. 750 ml.