People use hearing protection!!! I remember when I was at the security forces firing range and took my muffs off when we checked the target and forgot to put hearing protection back in place I always wore muffs and plugs after that and never took the plugs off.
Thankfully, a hot C.A. instructor put muffs on me after the third round Man 5.56 is loud
Side note, there are some hot chicks in security forces! One of our instructors at the academy looked just like Jenna Jameson!
I think my Waetherby 300 mag. I say I think because I have never shot it without hearing protection. I thought I would specify hearing as I have been on this site a very short time - but know the abuse I would take - lol