Ran across some of this (in research, not in my arms room or anything) and was wondering if anyone (DocGKR?) had more info on it.
RUAG Ammotec deformation ammunition. But it looks to me to be the same as the old Action Effect ammo which I think is +/- the same thing as the Action 3 ammo.
I ask because I thought this was the hotness in like the 80s, but had gone away, and we have nothing like it in the US as far as I know. So, is it dumb, or just a different way to go and somehow US bullet makers don't believe in it?
Current stuff claims to have optimized expansion and depth, and be (though they don't use the term) barrier blind. Some more info in the Ruag sales guide PDF: