If a threat needs stopped, I will use whatever is at my immediate disposal to accomplish that task regardless of the typical uses, warnings or disclaimers of the items I choose to employ.
We'll have time to play court later if it all works out.
Or how it's marketed... If that matters, the shooter has much bigger legal hurdles than his or her choice of ammunition. That being said, I will always carry ammo commonly carried by local LE. Who cares if it's a few bucks more? Once you know it runs OK in your SD gun, it's not like you have to shoot tons of it.