I was at Walmart and picked up several 100 round Federal value packs of shotgun shells. One of them ended up be a 20g, which I do not own. I am looking for anyone interested/willing to trade my 20g 100round value pack for a 12g value pack. I tried to return it with no luck.. And the wife already told me this is not a legitimate reason to buy another shotgun haha.. Anyone?? This is just you basic field and target shot..