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?
Basically every modern cartridge is supersonic unless they’re specifically underpowered to make them subsonic.
The smallest thing you’re going to regularly encounter is .22 LR- for context this is the kind of thing you’d use to hunt very small animals- and even that straddles the line of super/subsonic.
Basically what I’m getting at is that it doesn’t need a “large gun”.