Well I guess I am a brassaholic,but yesterday I was at the range picking up any and all brass that looked good. I found Quite a few 22LR that were not shot. Now get this,the shells were stomped into the ground,probably been there 2 to 3 years,the brass was stained so bad it was black.This stuff is outside in all the weather. I had quite a few so I took them home to disect ,might as well get the lead slugs . I broke them appart with my fingers. Took the lead and put it in my pot for some further bullet making. Then it gave me a thought,I got out my Ruger Mark II and put the empty 22 case in. They all went off. Amazing,they all had a (pop) I just could not believe that a shell could last that long,in all that weather. I know of a friend that found some and put one in his rifle and stuck the bullet in the barrel. Anyway I was sure supprised to here a pop. Jerry