SFF- Are you trying to convince someone to not get them?
If so, how about videos of XM193 hitting steel plates? There's a lot and I've found them most effective in getting people to reconsider
Couple spalling with the fact that XM193 cruises straight through and it's a no-go.
Going to show vids and maybe also put some cardboard around some (rifle grade) steel targets that we have to show what happens.