I was inclined to agree with you until I found this. I always wondered if my fondness for things that go bang sank my attempt to go to West Point.
Saving Your Hearing by William F. Kendy
How loud are different types of firearms? Here's a basic list of peak sound pressure levels (decibels).
.44 Magnum Revolver - 164
.357 Magnum Revolver - 164
.30-06 Rifle - 159
.45 Automatic - 157
.38 Revolver - 158
12 Gauge Shotgun - 156
.223 Rifle - 155
.22 Rimfire Revolver - 152
.22 Rimfire Rifle - 134
Unfortunately I can't dispute Bloomberg's allegation but I still think he is a liar whose sole agenda is total disarmament of all people.
FWIW, I have a trap set up in my basement where I periodically shoot my Rueger .22 pistol and my Beeman Kodiak pellet rifle and have no discernable hearing loss......
Besides, since he lost his hearing, all firearms instruction manuals and ranges now mandate hearing protection when firing guns...........