We have always showed pictures of our .308 testing on our plates. When the .308 hits the plate, it often leaves a little backface deformation (as seen in our videos). The back face deformation shows that the armor itself is absorbing a good amount of the bullets impact. Fragmentation from the .308 is generally larger chunks compared to the .223 because of this. During testing over the last several months, .223 would rarely, but on occasion, blow off a "penny size" chunk of the coating. Granted, all the frag was stuck to the chunk that blew off, but nonetheless, it blew off on occasion. We yet again made another improvement and changed up our primer. If this makes any sense, we went to a "weaker" primer. The theory behind this is that it would allow the coating to seperate from the plate instead of occasionally "blowing off" the plate when the frag gets nasty. In this case, though the .223 is a "weaker" round compared to the .308, so it does tend to produce more frag (in much smaller pieces as well) since the plate itself is not absorbing the majority of the impact. Make sense?
Anywho, we went out early this morning and did some more testing. Check out the pics! 100% fragmentation contained!
The bigger bulges show the .40 FMJ we fired from just 7 feet! Again, 100% contained!