[KrisKrinkle]

“The oxygen needed to launch the bullet is contained within the bullet...”

Sigh.

[OldSmaj]

I understand your sigh...but can you come up with a more simplified explanation of how nitrocellulose provides the "bang" in a smokeless cartridge?

Patrick Sweeney provided the best layman explanation of the process in the current issue of Guns and Ammo.

It is a simple process, but not really understood by most lay persons.

Quite simply, the oxygen IS in the cartridge, for the easiest understanding for most people.