You better have a damn good idea what you are getting yourself into. The bar industry is saturated in plenty of places, although I suspect in your situation a ma an pa place would be fine because you don't have to worry about your place getting outdated.
you won't make ANYWHERE near 25-33% of gross. Not even close. Like ferdville says your biggest costs are labor and escalating rent if you don't own the building. Plus there is employee theft which happens everywhere. Plus insurance costs which you need liability, workers comp, etc. That adds up. Then you have state and city liquor licenses yearly and inspection fees and fines, because your place will never be up to code no matter how hard you try. Don't forget paying off the cops. Not backdoor stuff like movies and such, but donating to their stupid balls when they call all the time or suffer the wrath of stupid tickets. Then your beer costs should net you about 20% in a perfect world. Don't forget utilities, and I imagine in Wisconsin your heat bills will be a bitch. And also don't forget the direct tv bill. I'd imagine you will have tvs and for the NFL package its not just like buying it for home. They do that stuff on seating occupancy and jack the prices up immensely. Planning on playing music. Well now lets add to that ASCAP fees.
I have investments with a few bars out here, but certainly nothing major. I know what goes on and how extremely difficult the business is. Not trying to discourage you at all, just letting you know that there are a million hidden expenses. All the stuff you never thought of...knife sharpening, tap cleaning, nightly cleaning crew, etc. It's a bitch.
And don't forget your hormonal PMS waitress who calls in sick ten minutes before her shift. The bar business is tough.
good luck to you and hope it works out.