I have a 6 month old German Shepard. I like taking my .45 up with me hiking and target shooting. My question is, does a loud gun like a .45 impact or erode a dog's hearing. I invested a lot of money in this guy some I'm extra sensetive about keeping him healthy. Other question: What's the best way to acclimate a puppy to guns without scaring making them forever fearful of them? Thanks.