I was thinking about how fire guns are very loud and how its worst in close environments (I had never shot a gun cuz im not american) and I remembered the Mirror room scene in John Wick Chapter 2.
I was thinking if by shooting once, many mirror could break because of the sounds of a gun alone. Has someone tried this or see it happen?
In theory? Yes.
In practice? Probably be easier to bash it in?
It’s not the frequency that matters, it’s the pressure wave. When any gunpowder-based weapon fires, the expanding gassed from the sudden conflagration of gunpowder doing its thing, right?
Those gases keep expanding even after leaving the muzzle. You can see that in this picture of the USS Iowa firing- the muzzle blast expands spherically and the displacement on the water creates a shallow depression.
If that blast was strong enough and sharp enough, it could break glass, yes. It’s dubious that any standard firearm could just from the muzzle blast alone. But you make a big enough gun with fast enough powder… sure.