How effective has 9mm FMJ proven to be in self defense?

[verdun59]

I'm loving it !! We even have a hammer debate -- how about corkscrews vs sabers ? Keep it going....I sent the wife out for more beer.

 

[9mmforMe]

Yawn...next?!

 

[BADUNAME13]

481:

Is Ok. As I said, I still don't get it... Perhaps because I know too many hunters (See the bit about 'big game hunters) SO it was a little shocking.
(Perhaps also because my analogy seems perfectly logical to me)
Mass, Velocity and all that... (With as I said, the difference in velocity being statistically insignificant)

Then perhaps that is what you should've said.

As far as I am aware... I did.

As for professing about the "difference" between the two rounds in question (.45 230 gr. FMJ and 9mm 124 gr. FMJ), you have yet to define any such quantity and the differences therein.

I let the FBI do that for me....

Both rounds produce deep terminal penetration, minimal temporary cavity and a nominal permanent crush cavity. There is very little else to distinguish the two from one another other than the fact that the larger slug produces a slightly wider permanent crush cavity. It is highly unlikely that this rather small difference in width (~2.49mm or about a tenth of an inch) would make a difference on a questionably placed shot.

I understand that a 1/10 of an inch is not alot...

A more'math inclined' person once broke down the difference into %...
Perhaps one of you who are would like to do so.
Kinda puts things in a differing prespective.

Double Naught Spy:
I'm guessing you ether missed or didn't read what I posted and linked to...

 

[M1key]

Very effective when you hit 'em right..................

 

[481]

I'm loving it !! We even have a hammer debate -- how about corkscrews vs sabers ? Keep it going....I sent the wife out for more beer.

D'oh!

No, no, no...it has to be more comparable! Y'know...like sabres v. foils, grenades v. Molotov cocktails or pitchforks v. scythes.

 

[481]

A more'math inclined' person once broke down the difference into %...
Perhaps one of you who are would like to do so.
Kinda puts things in a differing prespective.

Well, the difference in frontal area of a .45 FMJRN and 9mm FMJRN is about 61.59%

Sounds large doesn't it?

Proportionalities are like that, they can be misleading without a context against which to judge them.

When we compare the actual difference in frontal area of both rounds we see that the difference in frontal area is actually very small, on the order of a little more than 6/100ths of a square inch. Imagine a tiny square that measures just a little less than 1/4th of an inch on a side.

That's the difference in frontal area (the part of the bullet that does all the damage) between the two rounds (.45ACP v. 9mm) being considered here.

Not much of a difference there afterall, huh?

 

[hardworker]

Maybe we could debate roman legions vs spartans.

 

[481]

Maybe we could debate roman legions vs spartans.

Yeah, like that. I'll take the Spartans!

 

[verdun59]

I have a Spartan, and it's better than a Glock.....

 

[FIVETWOSEVEN]

Time to get a mod to kill this, strayed to far from my original question.

 

[Holo]

Take the best of both worlds...Polymer tipped HPs!!!

 

[Larry Ashcraft]

Closed at OP request.