When a fmj .223/5.56 is shot in ballistic gel, you can see the temorary stretch cavity is as big as a basketball. Will similar effects occur when you shoot a man in the chest?
Not as much because you have shit like bone, tendons and other gristle making the target more dense than gel.
Ballistic gel is just a medium that easily shows effects of bullets in something similar to meat. It's not a 1:1 comparison by any means.
That's why FBI minimum penetration is something like ~12" in gel. Lots of people aren't 12" thick in the chest, but they're not made out of a consistent gel either.
But, generally, if something performs consistently well in gel, it'll work well in meat.
Keep in mind that the temporary cavity is just that, temporary. It's the wound left behind afterwards that matters.
>Lots of people aren't 12" thick in the chest, but they're not made out of a consistent gel either.
Yeah, simply breaking skin going in is probably an inch's worth, breaking skin going out is 2-3 inches, bones are buggers, and a lot of tendons and such are probably a lot tougher than the gel.
The FBI standard is also built around that you won't always get a nice, square on chest hit as well. If someone's shooting at you there's a good chance his arm will be in the way. So that's skin going in, say two inches of meat and bone, skin going out, skin going in, ribs and some flesh, plus three times through his ajcket and shirt, and then you can start doing damage where it matters.
> well-reasoned, calm explanatory comment
GTFO. You don't belong here.
Through the lung will kill you if you don't get treatment, but it's not like it will make shockwaves of energy bounce around inside of you and tear you apart. 5.56 kills by fragmenting and tumbling, if you want to turn someone to hamburger you want buckshot or multiple rounds.