Craig i start shooting around my dogs when they are pups usually start out with a 22 walking around with them in the pasture shooting if i get one that is nervous or scared of it i put them on a about a 20 ft rope and lead them and shoot and pull them to me and pet them afterwards and they usually get over it in a day or two. All my dogs will catch after i shoot but the hog hits the dirt after they are shot i use a 41 mag or 30-30 when i am hunting i never pay attention to the wind when you got 5 or 6 dogs baying the hell out of one he is not worried about what you are doin i just ease in there and watch a good bay and bust that ass when he gives me a good shot i hav seen it with just one or two dogs its a liittle harder to sneak in and get a shot
i know i have had big hogs break when they see me but the dogs ussually get them bayed in just a short distance.