[TigersEye]

See #23.

[Fido969]

There has been a lot of confusion, and many people have assumed that blanks were used, and don't even know what a dummy round is.

There are different types of dummy rounds. Some have holes drilled in the sides. Some are missing primers, or have dimpled primers. Some have rubber primers. Some dummy rounds look exactly like real rounds, but most of those are oversized and can't be loaded, and they are used in gun belts, etc

I don't know about dummy rounds that contain BBs, but this article describes those. I'd think those might rattle during the filming, so might not be useful in certain cases.