The phrase "real bullets" means using actual dangerous weapons or taking a situation seriously and not just pretending or playing around. Full definition
The elaborate plot slows down the movie with car chases, bar fights and guns with real bullets just when you want to hang with the characters and get to know them better. (rollingstone.com)
Despite an avalanche of negative ads, nobody is shooting real bullets at him. (hudsonvalleyone.com)
Teams at startups tend to spend a lot of time together so it's important that the organization structure is a fit,» says Caitlin McCabe of Real Bullets Branding. (inc.com)