2013 if Obama is re-elected
1949... Winchester all brass shells were manufactured from 1879-1949 See more on my blog ozarksdetector.wordpress.com
Most commercially available shotgun shells come in boxes of 25.
Air soft shotgun shells are the size of 12 gauge shotgun shells.
Find someone who reloads shotgun shells. They will relieve you of your inventory.
No
You can use nothing but 410 shells in a 410 shotgun.
NO
Shot and Slug
Shells
No.
Yes, you can.
Generally "Pellets" or "Shot" contained in "Shells". There are also solid shot "Slugs" similarly contained in "Shells". I'd use Shells ie "8 shotgun shells", unless you are specifying exactly the type.