I have come up with some older ammo from my father's old foot locker in the shed. I'm not sure what could be done to clean it up? I would like to put it to use, and it certainly seems that it would be better to clean it first, but is it necessary? Is there a product better suited for the cleaning job? I have a unfired rifle and thoughtt I could at least use it for break in and getting close before using "newer" stuff for further shooting? I was not sure where to post this question and tried to do a search but came up empty. So I apologize if this is the wrong spot. Thanks for the help.