Yes, that will do it Ken. I've never heard the term Gun Number. What is that? I used to stand on the deck of the USS Iowa, one of our battleships, as it let loose a 9 gun broadside. The funny thing though is that it didn't seem that loud. The ones that were ear shattering were the 5in/54 twin mounts. They were absolutely ear shattering.
Our daughter admonished me for riding without ear plugs. She's a DAud and the head Audiologist for the Air Force. She was also an avid rider, touring western and eastern Europe while posted in Aviono, Italy. As a teenager I used to pull the plug on her stereo when I'd come home from work and could hear music from in the hall outside her bedroom door; through her headphones.
Years ago she was one of the supporting researchers on a paper being developed by two Air Force ENTs on hearing damage from riding motorcycles. She was surprised at how high the decibel levels were even while riding with a full face helmet. She assures me that I can continue to damage and degrade my hearing as she lectures me about hearing protection. Boy but those tables sure turned.