I just saw this UHMWP review by "twang-n-bang". After he pulled the plate apart, it had the same kind of bulging as that the plate that Suarez used slugs on (up thread). The bulges came through the integral trauma pad. My impression is that it might make getting shot with a rifle at close range survivable but it would be hard to just walk away from https://www.youtube.com/watch?v=UsjOV7tcGRI
I don't know if it's just me but most of the "gun" videos I've seen on p**stube leave me watching a spinning circle, and sometimes it doesnt seem to be possible to grab the time-line bar to advance it. With this one I had to start the video and then click on the AR500 link shown below in the text, to get this video moving