Greetings to all. I am an avid reloader, head stamp collector, scientist and seeker of knowledge. I have an on line store where I sell reconditioned pistol brass for reloaders to finance and supply my head stamp collecting hobby. I post a blog titled reloading facts and fiction, which deals primarily with brass cartridge cases. I am interested in factual information regarding cases that can be confirmed. My current interest and one reason for joining your forum is to ask if anyone knows how to obtain information on brass manufacturers. I have anecdotal information that the Olin corporation makes the brass cases for several ammunition makers around the world but have never been able to get them to share this information, nor have I been able to find confirmable data. Same for Federal. Any direction or help would be greatly appreciated.