I haven't shot in probably 3 years, but I met some old friends and they want to get together for some skeet shooting. I've got a .410 shotgun and no ammo. Any advice on which ammo to buy and where to get it from? I'm on a tight budget here so I'm looking for the best bang for the buck. There are no gun stores in my area and the only place to buy ammo is walmart so unless someone has something good to say about walmart I will most likely be ordering online.