Naked skin is ballistic gel, actually that's incorrect, internal flesh is more accurate. Skin is actually tougher than the interior. So assuming someone has no bones (i.e, rib cage or skull that BBs will deflect off of) and no shirt or jacket on. (Notice there was no 4 Layer denim or windshield ballistic test for birdshot)
I'll remind all of you this is also New Jersey which means most people will be wearing coats close to half the year.
You might get lucky and get some of the smallest BB's at the lowest velocity loading to make it to the internal organs. Which makes the smallest wound cavity on its way there, which leaks the least amount of blood.
But why would you?
Do any of you carry FMJ for self-defense?
I mean it's a bullet? FMJ kills tons of people everyday!
ETA: It's literally telling people to use the absolute worst loading possible for the scenario to use that loading in the most crucial times.
The slowest, smallest and most cheaply made loading for self-defense.
5.56mm 75 gr TAP for self defense? Screw that .223 55 gr wolf. 9mm 147 gr HST? Pfffft who needs that 115 gr FMJ Tulammo!
Except Wolf and Tulammo are drastically more effective than birdshot versus buckshot.
5.56??? How about .22 Short, it's the same caliber, why not?
ETA 2: To drive the stake home.
Who uses Birdshot to hunt Turkey or Duck here?
Or anything else other than those animals?
Why would you not use a load made for a less than 3-5 lb animal within about 40-60 yards with hollow bones on a aggressive attacker weighing 165 with not hollow bones?
And those doves? They aren't going to shoot you back in the middle of the night in your house at hallway distance. I'm just saying.
I have been harsh in this comment but it's just because I want people to not be injured or killed depending on the wrong equipment.
How many Police, Military or Protective Services use birdshot?
Name One.