Proof also refers to the amount of alcohol present, and in the U.S ... which would correspond with 100 proof. Restrictions changed, but proof equaling double ABV was set -- for America, at ...

Rep. Terese Berceau, D-Madison, is looking for co-sponsors for a bill that would make all liquor containing 80 percent or more alcohol by volume or 160 proof illegal, citing the increasing number of ...