Real rednecks would have Schmidt, Miller High Life, or Busch.
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It seems to me that in Miami, Budweiser is the main redneck brew at bars.
Old Milwaukee and Schaeffer's (known as Red White & Blue) are more often bought in the supermarkets, as they aren;t normally sold in bars.
Schlitz USED to be the main redneck brew, but it is rare or nonexistent, other than as the Blue Bull Malt Liquor, a favorite of Black people here. Schlitz once had a Red Bull, but they seem to have sold that brand to someone making overpriced caffeine in skinny cans with no alcohol whatever.
We don't have Schmidt here. Busch and Miller are fairly common, but less so than those above.