Sound intensity is an interesting and important concern for shooters.
All of the common CF cartridges have decibel levels above 150. This is, as noted, loud enough to cause permanent damage with a single exposure.
A decibel increase of 10 is ten times more intense than then lower value.
Normal conversation occurs at about 60 db. A gunshot is at 150. That is 10x10x10x10x10x10x10x10x10 times more intense.
"Only hunting and mountain climbing are sports. The rest are just games." - R.Ruark
NRA Life Member