This is an interesting web site that was sent to me.
It is not my own creation.
It discusses the use of sand filled walls to stop bullets.
http://www.theboxotruth.com/docs/bot7.htm
Basically a 2x6 wall filled with sand and drywall on both sides of the sand stopped 5.56, 9mm, 45 acp, 7.62x51, 12ga slug, and 45/70
an interesting read
It is not my own creation.
It discusses the use of sand filled walls to stop bullets.
http://www.theboxotruth.com/docs/bot7.htm
Basically a 2x6 wall filled with sand and drywall on both sides of the sand stopped 5.56, 9mm, 45 acp, 7.62x51, 12ga slug, and 45/70
an interesting read