A little bit of google slothing revealed a site dedicated to the head stamps of shotgun shells I did not know existed. http://www.cartridge-corner.com/shotgun2.htm

And a Youtube video on the CIL - 3B primer and how to use them.


All very interesting. However I rather doubt I will reload the 20ga hulls since they are somewhat of an antique. Down the road they will be for sale.

Nothing is foolproof to a sufficiently talented fool.