SO when you have to shoot it, there is a record
is it legal to walk your yard with a shotgun? Is open carry legal in your area? If so let the cops know what’s up and open carry. Get the cops input, but carrying a holstered pistol will leave your problem neighbor with the knowledge that his dog is toast if its gets on your property. Lastly video security system. ps talk to your mailman. they have the right to refuse service to people with aggressive animals, a heads up carry pepper spray will be appreciated.