Depending on the huckster that is casting this, the bullet penalty can get up to 3, or more with an Attire boost. Or Lillian Morgan to drop a 5 point hammer.
of course the potential bullet bonus is best with a stud huckster, like Dave "Slim" Gorman, or Nicodemus Whateley, or even Auntie Sinister.
for extra dirty tricks, you could tag team this with Nightmare at Noon to render the opposing posse into a field of brass.