We had two dogs into our chickens a month ago, and my husband bought me a small 22 calibre revolver. I have been practicing.
I called the neighbors and told them I WILL shoot the dogs if they come back, and they promised they would keep them there.
I LOVE dogs. It isn't their fault; it is the fault of people who don't keep their pets home. But I am still not going to let them kill my chickens, who are also pets.