Is it ammo that doesn't go where you aim or it doesn't go there very often? Does it only sometimes go bang? Is it any ammo you wouldn't stake you life on? Is it any ammo that is factory produced? Plinking ammo maybe what is used for fire forming brass.
I've been a bullseye shooter all my life and have difficulty understanding the need for "plinking ammo" but that maybe because I really don't know what it is or what it is used for and I may have a bunch of it and not even know it. Maybe that's all I've ever shot. Maybe "plinking" is a relative term; like you know "accurate" is.
A young upstart asked me this question and now I ask the experts for some help here.
Ramar