I shoot a flat of Federal papers every year and reload the empties for my field loads when I use a semiauto or pump gun. They do not leave as long lasting mess as plastic hulls if I can't retrieve them.
I have quite a few old factory loaded paper hull shotshells around, I use some of them for various types of hunting. The scuffed and faded ones do not have much collector value so I don't mind shooting them. Those that are near new looking are taken care of as some collectors look for them to fill out a box. Value in money isn't much but one can usually trade for a much higher value. It is where I get many of my "shooter" shells.
