No dogs, just good old fashioned foot work. I have seen where quite a few guys use there dogs to find sheds, but I also seen where a guy from Colorado this year received a ticket and is taking it to court for using his dogs shed hunting.
It would be interestin to know about that shed hunter that had the dog out. That along if there were any animals around or if he was in some kind of an area that restricted dogs. I know that Utah the last couple of years have required for the shed hunters to pass an online course and to keep a copy of the certificate with them when they are hunting sheds during the spring. They even have dates when you can be out to prevent people harassing the wildlife. I read one case where a person chased and tried to get a nice bull to drop them.
What does "gauge" mean anyway? As used here gauge means the number of round lead balls the same diameter as the inside of the barrel (aka the bore) that it would take to weigh one pound. It takes 12 lead balls the same diameter as a 12 gauge barrel to weigh a pound. The smaller 20 gauge would require 20 balls of that barrel diameter. The larger bore 12 gauge would require 12 lead balls of the bore diameter to weigh one pound.
In general the number of pellets in a shotgun shell...