http://looserounds.com/2012/11/15/wh...lets-find-out/
The author of this blog had an abandoned home complete with left behind furniture, appliances, food in the refigerator, etc. Like any good gun nut, he used the opportunity to test which of these items were cover and which were concealment when fired at with: M193, M855, Hornady 75gr TAP, and Hornady 75gr Training.
In addition to just being interesting, a lot of people will probably find it informative.