KO Distiller’s Reserve Bottled-in-Bond (BiB) 6YR Bourbon Limited Edition represents Virginia ABC's #1 barrel pick from KO Distilling: Barrel #16-090. This single barrel selection has been aged for more than 6 years, longer than any other KO Distiller’s Reserve Bourbon iteration. This bourbon was distilled at KO Distilling in Manassas, VA under Head Distiller Ryan Hendricks in one distilling season. It is handcrafted from Virginia-grown grains, including 70% corn, 20% wheat, and 10% malted barley, and bottled at 100 proof. Virginia Grown. Virginia Made. From Grain to Glass.