One way to emphasize More Dakka, or at least how powerful a weapon is, is showing all the bullet casings being ejected out of that gun. Expect this to be noisy. In scenarios involving Humongous Mecha, the falling bullet casings from said mecha
Surprisingly Realistic Outcome - TV Tropes
Dramatic Ammo Depletion - TV Tropes
The End Or Is It? - TV Tropes
Sexy Discretion Shot - TV Tropes
TV Pet Peeves and Tired Tropes: Empty Cups, Ripped IVs, Endless Ammo
Slap-on-the-Wrist Nuke - TV Tropes
Trapped in TV Land - TV Tropes
Arcane (Western Animation) - TV Tropes
Bait the Dog - TV Tropes