How much is a shot? Shot Size varies. Is 1 oz. a shot?
The question "How much is a shot" comes up a lot. Most use a standard 1 ounce shot - but the size of a shot varies from place to place.
Your glassware is one determining factor. 1 ounce of liquor in an 8 ounce glass with ice and mix seems acceptable to most - but if your standard cocktail glass is a 12 ouncer, you'd better be prepared to pour a 1-1/4 to 1-1/2 ounce shot.
The variance seems regional as well, with heaver pours on the right and left coasts, and smaller shots in the Midwest. You can still get a brandy and 7UP in a 6 ounce glass (3/4 oz. shot) at many a tavern in Wisconsin. They'd not be happy with that in New York City!
The important issue is to be aware of your shot size, and pour it consistently. No better way than with the right Posi-Pour.