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Old 08-03-2010, 19:13   #1
feathers73
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9 mm vs 40 S&W

I have been trying to do some research on 9 mm versus 40 S&W. I know the debate will probably never be totally put to bed, but do you think a 9 mm 147 gr bonded bullet has a significant disadvantage over a 180 gr 40 S&W bonded bullet?
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Old 08-03-2010, 19:27   #2
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Significant? No. Slight? Probably. But in reality whichever you can shoot more accurately and faster and more confidently is the better choice.

One way to look at it is both 147gr 9mm and 180gr .40 are going to go roughly the same velocity. Is the extra 0.045" in diameter and 33gr weight going to make a difference? Or will the lighter recoil, greater capacity, lower cost (allowing one to practice more) offset that advantage?

All other things being equal, bigger and heavier bullets are better than small light ones. But nothing is ever equal in all other things.

Last edited by cowboy1964; 08-03-2010 at 19:35..
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Old 08-03-2010, 19:29   #3
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Gee, this is like asking if you preferr Fords or Chevys.


Myself, I'm a big bore man. 10mm, .45acp, etc. I've never seen a reason to own a 9mm. My main CCW weapon is a G23. It's a compromise in concealibility and firepower.

So, why in the same size package would I want a 9mm when I could get a .40S&W?

At the same time if you blast a BG with 4 or 5 9mm HPs and they all land in the COM area he will be dead.

It doesn't matter if they are plain jane 115grs or if they are some super duper 147gr +P+ wonder bullet.

J
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Old 08-03-2010, 19:44   #4
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No. The .40 will make a slightly larger hole and possibly go a little deeper but there isn't a significant disadvantage with the 9mm.
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Old 08-03-2010, 20:26   #5
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I would argue that the .40 has an advantage because it is a larger, heavier bullet. On the other hand a lot of people can shoot 9mm more accurately due to it having less recoil, especially when used in smaller guns. In the end I would pick the one that I shot best and not lose any sleep over it.
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Old 08-03-2010, 21:50   #6
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No. The .40 will make a slightly larger hole and possibly go a little deeper but there isn't a significant disadvantage with the 9mm.
what he said
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Old 08-03-2010, 23:01   #7
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I would argue that the .40 has an advantage because it is a larger, heavier bullet. On the other hand a lot of people can shoot 9mm more accurately due to it having less recoil, especially when used in smaller guns. In the end I would pick the one that I shot best and not lose any sleep over it.
The 9mm/147gr & 40/180gr have the same SD. If both are of the same construction, they will penetrate about the same. So let platform be your guide. I like 9mm in smaller guns, 40 in full size guns. I only get 10rds, I like the biggest holes I can get, even if they are marginally bigger.
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Old 08-03-2010, 23:34   #8
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you are better off going with lighter rounds. I suggest the 115 or the 127 for 9mm and the 155 or 165 for .40. 180 does not perform as well (expand as well) as the others and the 147 is just to powerful for a 9mm.
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Old 08-04-2010, 04:08   #9
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you are better off going with lighter rounds. I suggest the 115 or the 127 for 9mm and the 155 or 165 for .40. 180 does not perform as well (expand as well) as the others and the 147 is just to powerful for a 9mm.
Most LEA's go with heavy for caliber for more penetration and less perceived recoil.
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Old 08-04-2010, 04:40   #10
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here we go again.
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Old 08-04-2010, 06:57   #11
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I have been trying to do some research on 9 mm versus 40 S&W. I know the debate will probably never be totally put to bed, but do you think a 9 mm 147 gr bonded bullet has a significant disadvantage over a 180 gr 40 S&W bonded bullet?
I would put it the other wqy round. I think that the 9mm 147gr bullet has a significan disadvatage relative to just about any .40S&W bullet other than ball and,for that matter, relative to good 115gr and 125gr 9mm bullets.

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Old 08-04-2010, 07:20   #12
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Significant? No. Slight? Probably. But in reality whichever you can shoot more accurately and faster and more confidently is the better choice.
I agree
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Old 08-04-2010, 09:09   #13
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you are better off going with lighter rounds. I suggest the 115 or the 127 for 9mm and the 155 or 165 for .40. 180 does not perform as well (expand as well) as the others and the 147 is just to powerful for a 9mm.
This tells me you need to do more shooting. BUllet design has everything to do w/ performance, more so than bullet wt. You can certainly make a good 180gr JHP or a poor 115gr 9mm. Depending on your interpetation of "power", most 147gr 9mm are actually on the anemic side of the "power" curve.
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Old 08-04-2010, 10:12   #14
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Either one will do just fine if you do your part. The "your part" is what we need to work on.

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Old 08-04-2010, 10:24   #15
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Gee, this is like asking if you preferr Fords or Chevys.


Myself, I'm a big bore man. 10mm, .45acp, etc. I've never seen a reason to own a 9mm. My main CCW weapon is a G23. It's a compromise in concealibility and firepower.

So, why in the same size package would I want a 9mm when I could get a .40S&W?

At the same time if you blast a BG with 4 or 5 9mm HPs and they all land in the COM area he will be dead.

It doesn't matter if they are plain jane 115grs or if they are some super duper 147gr +P+ wonder bullet.

J
I would agree with you, but something tells me we don't see eye to eye
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Old 08-04-2010, 10:29   #16
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Originally Posted by fredj338 View Post
This tells me you need to do more shooting. BUllet design has everything to do w/ performance, more so than bullet wt. You can certainly make a good 180gr JHP or a poor 115gr 9mm. Depending on your interpetation of "power", most 147gr 9mm are actually on the anemic side of the "power" curve.
http://glocktalk.com/forums/showthread.php?t=1226930 Mas Ayoob agrees to stay away from the 147. they are not as effective.
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Old 08-04-2010, 10:53   #17
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im just a thin 150lbs. 6ft tall guy and i shoot a G23 .40, 180gr JHP ammo. less velocity i know, but i don't need personal protection at 100 yrds. i say choose what you want to shoot and practice religiously with it. for me, at first it took getting use to, but now i can hit a bulls-eye at 15-20ft away consistently. i choose what i have because of penetration, and damage. personally the 180gr could have a less recoil.

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Old 08-04-2010, 10:56   #18
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According to what I read Ayoob said stay away from the old low-tech 147gr hollowpoints. He approves of the new high-tech premium rounds IE; HST's, Ranger-T's and Gold Dots which all of those I use. That being said, I also like all of the above in any flavor offered.
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Old 08-04-2010, 11:03   #19
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http://glocktalk.com/forums/showthread.php?t=1226930 Mas Ayoob agrees to stay away from the 147. they are not as effective.
First you were saying the 147gr were too powerfull, now it's not as effective! Which is it my man? Besides, anything written by CH carries about as much weight as anything written here.
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Old 08-04-2010, 11:45   #20
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I loaded some 147gr XTPs to 900fps and they expanded nicely to .56". They also penetrated three 1 gallon water jugs with ease.
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