"expiration date" for shotgun slugs?
While cleaning my gun cabinet I found a box of Lightfield Hybrid 2 3/4" sabot slugs - probably several years old I'd guess. The box itself looks different than the newones that are sold, different picture and lettering on it. I opened the box and the slugs themselves look ok - maybe a slight bit of discoloration at the top where the slug itself is visible (the actual slug is more white-grey in color when compared to my brand new slugs that are dark grey). Anyway, I was wondering if any of you had comments/experience with shooting old slugs out of your guns and if it made any difference at all in accuracy, etc.... Is there any reason for shotgun slugs to "go bad" or "expire"?