I am not sure about where you live but.............if you find that the brass is rusted and any others wont shoot, call your local PD. I had some that I forgot about sitting around out in the garage. When I found them they were nasty. I took the whole bag of them to the local PD and dropped them off. They took them. All they asked is where I got them and said thanks for not just throwing them away.
I've fired shotshells loaded around 1910 without any problems at all.