Thank you for the replies. I have sensitive hearing and had to give up shooting a single action revolver because even 38 Special was significantly louder than my 9mm pistol. I use both foam ear plugs and ear muffs when I shoot. I sold the revolver because of this. But I'm going to be getting an 1873 Taylors lever action rifle [which 38 Special out of it is no problem for me] and would like to compliment it with an Uberty Birdshead single action [probably 4.75" barrel], but if 38 Short is still about as loud as a 9mm, I may not be able to do that either.