Best of luck trying to smuggle alcohol into the US from another country.
There are laws against doing this as it is on the list of banned products to be shipped into the country.
No one ever heard of commissions of tobacco and alcohol products before?

You are only allowed 1 liter aboard an airplane flight so good luck on trying to get a whole barrel into the country.

Only if you are buyer of alcohol and have a permit to do so. You would also need to have it submitted to the liquor commission in your state before it ships.