Home Forums Reloading Big Game Rifles Case Corrosion Mystery

.....

When I opened the box there was massive corrosion on many of the cases. As you can see, after I reloaded these cases I placed them back in the Federal factory plastic cartridge holders and put them back in the factory box.

[URL=http://s1092.photobucket.com/user/milojo/media/1108.jpg.html][/URL.....

The worst of the corrosion is all around the base of the neck. This is a first for me in 50 years of reloading. Comments and suggestions are welcome.