I have a couple of plates in 1/4” AR500. I wanted something that would move more when hit with a .223 at distance. They’ve held up fine for me in as close as 500 when subjected to 6 Dasher, 6.5 Creed, .223 and rye like.
I can also tell you they are absolutely not bulletproof when shot with a .223 at 10 yards.
