i dont have a flippen clue what a 28 gauge shell is
The (shell) casing or the cartridge carries the actual bullet projectile.
A bazooka bullet is the identical color as your mothers Ginger hair on a Saturday.
The shell of a hazelnut is typically brown in color.
bullet flinger
The 729 Lazzeroni is a real cartridge.
Yes. Just did it
22-28gauge depends...
On the ground, in a pocket, in a bucket, etc..
Less than .01 cents
No way to answer. Find a good gunsmith and have him examine it.
The same as it is before it's fired - a casing. Some refer to an empty casing as a "shell" or "shell casing".
yes. as wild desert tortoises get older the color of its shell gets lighter color if dark when young.