In a hunting situation without hearing protectionYOU WILL experience AT LEASTONE if not more of these symptoms after shooting a 7mm or 300 Win Mag with a muzzlbreak...

According to the American Academy of Otolaryngology, noise is damaging if:
[ul]you have to shout to be heard.
your ears hurt.
your ears ring.
you have difficulty hearing for a couple of hours after the exposure. [/ul]