If you’re playing a game that’s sufficiently advanced to have revolvers… Prestidigitation can make bullets.
Place prestidigitation bullet in a chamber, lock gun
Alright, gents! I say I’m not gonna die if I pull the trigger! Who has some gold that says I’m wrong? Who has some gold that says I’m right? I’m putting up my life, here, I’ll take 10% off the top for my troubles if I live that long! Bets come in, giving the bullet time to vanish Click I’m still here and I think I’ll be after I pull the trigger again!
Keep going until five clicks Opens the gun up with enough flair to disguise the spell creating a bullet in the final chamber.