Understanding 9mm+p vs .40 s&w

23996 Views 12 Replies 5 Participants Last post by G23SNT, Oct 28, 2010

sinisterbud

Discussion Starter · Oct 28, 2010 (Edited)

i keep hearing a 9mm+p has the same specs 40 s&w so i did some investigating and found it not to be true all specs from double tap so for
9mm+p is Ballistics 124gr @ 1295fps / 462 ft. lbs. from a G19 9mm+p Ballistics : 115gr @ 1320fps / 445ft. lbs. from a G17.
and for 40s&w Ballistics : 135gr. @ 1375fps / 567 ft/lbs- Glock 23 (4.0"bbl)40s&w Ballistics : 150gr. @ 1275fps / 542 ft/lbs- Glock 23 (4.0"bbl) 40s&w Ballistics : 165gr. @ 1200fps / 528 ft/lbs- Glock 23 (4.0"bbl)
so as u can see 40s&w dose have more power i was confused after reading some poeple saying a 9mm+p is as good as a 40s&w all info from http://www.doubletapammo.com/php/catalog/index.php

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sinisterbud

Discussion Starter · #2 · Oct 28, 2010 (Edited)

For the big GR 9mm+p Ballistics : 147gr @ 1135fps / 421ft. lbs. from a G17.and a 40s&w Ballistics : 200gr. @ 1050fps / 490 ft/lbs- Glock 23 (4.0"bbl) i m sure the stats would be a little higher if from a G22 longer barrel being that the stats are from a G17 for the 9mm+p and 23 for 40s&w

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sfguard

· #3 · Oct 28, 2010

I don't get wrapped up into calibers, and caliber wars. Shot placement is the key. It doesn't matter what your using if it don't hit something vital it won't have the effect you are looking for in your time of need.

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sfguard

· #4 · Oct 28, 2010

That said the 9mm has put more people in the grave than even the venerable 45acp. How do I come to this conclusion? Simple Nazis used the 9mm in the holocaust. It was used most by the dreaded Einsatzgruppen.

Agree with it or not the 9mm is a very effective round when placed into the vitals. Just as much so as any other round.

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sinisterbud

Discussion Starter · #5 · Oct 28, 2010

I hear u i carry a 9mm and feel its plenty i just cant see people say one is better than the other and i guess i did myself but after poeple saying one was better i had to do some research and that was the results.

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sinisterbud

Discussion Starter · #6 · Oct 28, 2010

Oh forgot i carry a Beretta 92fs and yes i know its big but i do just fine concealing it

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sfguard

· #7 · Oct 28, 2010

Some people would/will argue anything. Like I said, I don't get into it. I have enough training and experience to know beyond a doubt it is all about placement not caliber. Especially in a pistol. There are even stories out there of people getting shot over 20 times with 45acp, AND the big 10mm and living. They don't get a whole lot bigger than that in handguns and being hit over 20 times and living. Sums it up right there. Placement, placement, placement.

I look at it like this shoot what you like, and shoot what you shoot well. If it is a 9mm so be it or if it is a 10mm or even bigger so be it.

But variety is the spice of life. Or so they say.

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coop

· #8 · Oct 28, 2010

All I know, is that I love my 9mm's and really don't see the difference in one or the other, because as said what matters is where the bullet hits.

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sinisterbud

Discussion Starter · #9 · Oct 28, 2010

I like the way you think

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jlw

· #10 · Oct 28, 2010

As sfguard said, shot placement is the key.

With that in mind, the 9mm is inherently more accurate than the .40SW. It also has less recoil and muzzle flip allowing for faster followup shots. Less recoil and muzzle flip also play into less shooter induced accuracy issues.

The 9mm will have less feeding issues than the .40SW, and it also operates at a lower chamber pressure.

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sinisterbud

Discussion Starter · #11 · Oct 28, 2010

yes shot placement is key but to say 9 is more accurate is not right maybe with follow up shots but not by much i have seen poeple shot a 40 just as accurate and just as fast if not faster with what i know its the person shooting the gun just look at hickock45

if i was him it wouldn't matter what gun but i will say is fallow up shots are just as fast an just as accurate as if he had a 9mm i love the 9mm like i said i carry a 9mm every day hell its on me right now

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jlw

· #12 · Oct 28, 2010

sinisterbud said:
yes shot placement is key but to say 9 is more accurate is not right maybe with follow up shots but not by much i have seen poeple shot a 40 just as accurate and just as fast if not faster with what i know its the person shooting the gun just look at hickock45

if i was him it wouldn't matter what gun but i will say is fallow up shots are just as fast an just as accurate as if he had a 9mm i love the 9mm like i said i carry a 9mm every day hell its on me right now

Note the use of the word inherently. Take two pistols of the same design with one being in 9mm and one in .40 and put them in a ransome rest. I bet you'll find that when taking the human element out of the equation that the 9mm is inherently more accurate than is the .40SW.

I would also be willing to bet that if you took shooters and had them shoot both aternately and used a timer to measure their splits that their follow-up shots are faster with the 9mm than they are with the .40SW.

You will see some of the big time IPSC shooters shooting .40SW, but this isn't due to the accuracy issue. They can download the .40SW to a lower pressure and still make "major" power factor, and they get a higher mag capacity than they would with a .45 ACP. Power factor comes into play in the scoring. I forget the exact equation, but it has something to do with the velocity of the bullet and the bullet weight.

For carry, you download the .40Sw to make it as controllable as a 9mm, and you give up any advantage ballistically that you might get otherwise.

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G23SNT

· #13 · Oct 28, 2010

Like previously stated, it's all about shot placement. 1 round isn't better than the other. It's just all about the shooter.

Great post though. 9mm+p isn't the same.

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