From Shacknews: “Getting more bullets in Void Bastards is extremely important for survival. At the start of the game, the only means of defence youll have is your trusty Regulator pistol, and you do not want it to run out of ammo. However, if you do find yourself a bit light on munitions, there are some ways you can find more bullets.”
Source: N4G PC How to get more bullets in Void Bastards