Whiskey and Vodka - Vodka Description - Non-GMO corn base that is six-times column distilled then charcoal filtered. The smoothest and cleanest vodka you’ll ever have! 80 proof. 40% alcohol by volume. Whiskey Description - 100% made in America, Metal Spirits Rye Whiskey is made from 95% rye and 5% malted barley, is column distilled and aged for at least 6 months in small (.53 gallons) oak barrels. Caramel colored, with oaky aromas. The taste is ridiculously smooth, and the finish is crisp and clean. 80 proof. 40% alcohol by volume.