Came here looking for help on my hearing problem, noting that there are few answers or opinions here. I respond to your post of a few months back hoping you are doing better. First I'd think one rifle shot near the ear, say only the distance between the shooter and the muzzle, would likely not seriously damage the ear. Wax can be cleaned at home using special kits sold a pharmacy or as for me use hydrogen peroxide, let it soak for a few minutes and rinse with warm water using an ear syringe.