[aeronca]

"It's a cartridge case.

Shooter, ya just can't make it clear enough--got any sausage pics to compare it with?!!!

"shell casing" is somewhat redundant anyway--like "outer-cover"

Spent Brass

[Shooter 2.5]

At one time during this I even wondered if the industry had changed the definitions so I checked my reloading manuals. Nope, they didn't.
I also want to call my local News station. They insist on showing a CAR-15 with a pistol cartridge magazine attached which is a bold faced lie. The icing on the cake is they reversed the negative.

[Before anyone mentions it, there are 9MM and 10MM CAR's.]