Thank you all. Very helpful information here. Much appreciated. I do have a roll crimper so it looks like I'm in business.

Last Dollar: Most fellows around here use high speed rifles that fire a bullet at nigh unto 4,000 fps and shoot them from 400 yards away. That makes it way too easy. I like to stalk up to about 20 yards away and then let them have it. I've done this for a number of years with a 20 Bore, but now that I have this old hammer gun, I want to use it for the Woodchucks. They are making big holes in my alfalfa field.