Old Dominion Ammo

[H4831]

I acquired a 1910 Winchester single shot and these old shells came with it. This is a good sample of old CIL Dominion shells, short, long, long rifle and shot.
The owner had owned the rifle since 1945. I have shot Dominion 22 shells since before that time period and for after as long as the ammo was made, but I had forgotten about the rings in the cases.
All had the standard head stamp of "D."
Does anyone remember those rings on the old cases?

 

[kamlooky]

Yes I do.
The ring around the center of the brass is what you
are refering too?
And I can also remember the little shorts too.
They were too short to have a ring.

 

[H4831]

Oops, checked my old CIL 22 ammunition and they all have the rings around the cases!
The short I photographed had a ring. It looked more like a dimple, but it was the ring.
I found some old Whiz Bang shorts and they too, had the ring.