[rickyrick]

Doesn't sound right...
The video shows fairly accurate depiction, but seems low.

When stationed at ft hood units were placed on funeral detail for a month at a time and traveled throughout the region to perform funeral ceremonies. We practiced every day during those months... Even using a mock casket. I was never on a firing squad but it was alot like the video... But never ever parallel to the ground. Those were garands in the video. I don't know about any adaptation to them.
We used m16s for ceremonies, but regardless of weapons used, or any adapted weapons.... I am most positive that they were thoroughly inspected throughout and after the process to ensure no live rounds were fired.