I have never seen milk jugs attack a person yet... Have you seen what a slug will do to the same milk jug? You also might have to engage someone at further than point blank range.
I don't know of any professionals (police, military) that use birdshot against a human.
I mean... who wouldnt want a couple Phalanx systems sittin out in the front yard, lol
LOL, would have to camo them
Do they make suppressors for Gatling guns? We'd have to Form 1 one...