I was surprised there was no little asterisk with fine print... I believe this is a fictional product... I doubt you could get buck shot to go 1km vertically and be of any use if it could get that high... DU or not.
It is.
I saw a similar parody on a left-wing site a while back, after the initial hysteria over domestic drone use.
I read on one site where it had received a few thousand inquiries for source info.
And getting an effective hit with any kind of shot gun round at 3200+ feet would be pretty damned good!
Except maybe a sabot slug?
Anyway, thanks for the chuckle.