I asked artificial intelligence to settle the 9mm vs 45acp debate.

shafter

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This morning I asked ChatGPT to settle the 9mm vs 45acp debate. For those of you who don't know ChatGPT utilizes artificial intelligence to process data almost instantly and provide immediate results in easy to read formats. You can ask it anything so I decided to ask "Which is superior, 9mm or 45acp?" The following is what I got for results.


The superiority of the 9mm vs. .45 ACP (Automatic Colt Pistol) is a subject of debate and largely depends on the context and personal preferences. Both cartridges have their own advantages and disadvantages. Here are some factors to consider:

**9mm:**
1. **Capacity:** 9mm handguns typically have larger magazine capacities, which means you can carry more rounds before needing to reload.
2. **Recoil:** 9mm generally has less recoil than .45 ACP, making it easier for shooters to control and stay on target for follow-up shots.
3. **Ammunition Cost:** 9mm ammunition is often more affordable, allowing you to practice more for less money.
4. **Velocity:** 9mm generally has a higher muzzle velocity, which can lead to flatter trajectories and better performance against some types of body armor.
5. **Availability:** 9mm ammunition is widely available and is a standard for military and law enforcement, making it easier to find in a variety of loads.

**.45 ACP:**
1. **Stopping Power:** Many proponents of the .45 ACP argue that it has superior "stopping power" due to its larger, heavier bullets. It can create larger wound channels, which some believe can be more effective in stopping an attacker.
2. **Ballistic Performance:** .45 ACP bullets are generally slower but larger in diameter, which can lead to better penetration and expansion, depending on the ammunition used.
3. **Recoil:** The .45 ACP has more recoil compared to 9mm, which some people find manageable, while others may prefer the softer recoil of the 9mm.
4. **Historical Significance:** The .45 ACP has a long history and has been used in various military and law enforcement applications.

Ultimately, the choice between 9mm and .45 ACP should depend on your specific needs and personal preferences. It's important to consider factors like capacity, recoil tolerance, ammunition cost, and your ability to shoot accurately with either caliber. Both cartridges are effective for self-defense, but the key is to train regularly and become proficient with your chosen firearm.
 
Pretty good answer overall, but the ballistic performance comment is incorrect in one respect:

Generally speaking and depending on the projectile design, 9x19 will penetrate better/deeper than .45 ACP.

Other factors being relatively equal, the faster and smaller diameter projectile will penetrate better. Here's the NIJ ballistic levels for body armor broken down by ammo classes.

1698418025300.png
 
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That was a good answer and gives one a lot to think about .
ChatGPT AI answer was simply selected copy/paste of some available information on the internet and was rather incomplete and inconclusive.

I asked ChatGPT to settle the 9mm vs 45acp debate.
OP asked ChatGPT AI to "SETTLE" the 9mm vs 45ACP debate and the answer provided obviously did not "settle" the debate rather just listed limited pros/cons of each caliber. (Good thing this AI answer didn't make up fake facts/historical evidence :rofl:) And while AI mentioned "historical significance" of 45ACP use in military and law enforcement, what about 9mm use in military and law enforcement? :oops::confused:

For this "human", 9mm vs 45ACP debate should always include evolution/development of bullet technology that improved JHP/bonded HP (Thick plated HP like Speer Gold Dot/Winchester PDX1) performance to where premium 9mm produced comparable/better testing data in terms of penetration/temporary/permanent cavity with windshield/barricade penetration at different angles.

And increasingly due to USPSA match use and popularized by John Wick movie with 124 gr bullet pushed to 1400+ fps near .357 Mag velocities, 9mm Major should also be included in the debate as it's an available option reality in 2023 (For me, shooting 9mm Major in stock production pistol is simple as swapping in 40-9mm conversion barrel in my Glock 22). Here is one 9mm vs .357 Mag gelatin comparison (Also includes 40S&W and .45ACP) - https://americanshootingjournal.com/357-magnum-vs-9mm/

While I started shooting USPSA with 45ACP 1911 and 9mm Sig P226 (Along with Glock 21/30 and Glock 17/19/26 for SD/HD later switched to Glock 22/23/27 for match/SD/HD), for me with testing data producing comparable results from 9mm compared to 45ACP, higher capacity of 9mm "settles" the debate.

This question was settled by AI in 1984 when The Terminator asked for a "45 caliber long slide ...
That's because 40S&W wasn't developed until 1990 and wasn't available in 1984. ;)

There isn't, nor will there ever be, a definitive answer to that question.
When I switched match caliber to 40S&W to better meet major/minor power factor with single caliber instead of 45ACP/9mm in the 90s, I found 40S&W to be flexible enough to download to less than 9mm recoil and readily meet major power factor with higher capacity double that of 45ACP.

So for this human IMHO, while 9mm vs 45ACP debate is settled going to 9mm, bullet performance enhancing development that improved 9mm also enhanced 40S&W with magazine capacity that still doubles 45ACP capacity and 40S&W ultimately finishes 9mm and 45ACP debate. (Oh, and I still have 9mm Major option with my Glock 22 not to mention 22LR slide kit option for cheapest shooting practice using the same trigger ... And you can't beat trigger time when it comes to producing holes on target fast :))
 
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This morning I asked ChatGPT to settle the 9mm vs 45acp debate. For those of you who don't know ChatGPT utilizes artificial intelligence to process data almost instantly and provide immediate results in easy to read formats. You can ask it anything so I decided to ask "Which is superior, 9mm or 45acp?" The following is what I got for results.


The superiority of the 9mm vs. .45 ACP (Automatic Colt Pistol) is a subject of debate and largely depends on the context and personal preferences. Both cartridges have their own advantages and disadvantages. Here are some factors to consider:

**9mm:**
1. **Capacity:** 9mm handguns typically have larger magazine capacities, which means you can carry more rounds before needing to reload.
2. **Recoil:** 9mm generally has less recoil than .45 ACP, making it easier for shooters to control and stay on target for follow-up shots.
3. **Ammunition Cost:** 9mm ammunition is often more affordable, allowing you to practice more for less money.
4. **Velocity:** 9mm generally has a higher muzzle velocity, which can lead to flatter trajectories and better performance against some types of body armor.
5. **Availability:** 9mm ammunition is widely available and is a standard for military and law enforcement, making it easier to find in a variety of loads.

**.45 ACP:**
1. **Stopping Power:** Many proponents of the .45 ACP argue that it has superior "stopping power" due to its larger, heavier bullets. It can create larger wound channels, which some believe can be more effective in stopping an attacker.
2. **Ballistic Performance:** .45 ACP bullets are generally slower but larger in diameter, which can lead to better penetration and expansion, depending on the ammunition used.
3. **Recoil:** The .45 ACP has more recoil compared to 9mm, which some people find manageable, while others may prefer the softer recoil of the 9mm.
4. **Historical Significance:** The .45 ACP has a long history and has been used in various military and law enforcement applications.

Ultimately, the choice between 9mm and .45 ACP should depend on your specific needs and personal preferences. It's important to consider factors like capacity, recoil tolerance, ammunition cost, and your ability to shoot accurately with either caliber. Both cartridges are effective for self-defense, but the key is to train regularly and become proficient with your chosen firearm.
The Choice should be simply the caliber that the shooter is the most comfortable with and can shoot his/her best! THATS HUMAN INTELLIGENCE!
 
4. **Historical Significance:** The .45 ACP has a long history and has been used in various military and law enforcement applications.

The 9mm wins this by a significant margin. For one thing 9mm has been around longer. Outside of the USA 45 has only been used by a handful of USA allies and then only when we provided the guns and ammo for free. It was never a commonly used cartridge in LE.

Traditionally USA 9mm loads have been anemic compared to what the rest of the world was using. Loaded to those levels the 45 ACP was the clear winner and it's understandable why so many firmly believed the 45 was superior. But when 9mm is loaded to its potential it is nipping right at the heels of 357 mag.

FWIW, I own, use and trust both 9mm and 45. Would feel the same about probably 1/2 dozen other cartridges.
 
HAHAHAHAHA!

ChatBPT pretty much wrote EXACTLY what I expected it to write on this subject! A bunch of incomplete, non-technically supported, mumbo-jumbo BS with a wishy-washy, non-committal conclusion to the question! Complete with BS terms that have no real meaning! Two fudds on a park bench could have done better!

Thanks! This will probably be the biggest laugh all day for me!

We should do more ChatGPT threads like this!
 
Physics says if you want to destroy something, bigger is better or faster is better. Therefore biggest and fastest is best.

The BATFE considers any caliber larger than a .500 as a destructive device. Therefore the S&W 500 magnum is the best available handgun for self-defense.

After that, rationalization and justification determines what you are willing to carry and shoot.
 
Physics says if you want to destroy something, bigger is better or faster is better. Therefore biggest and fastest is best.

The BATFE considers any caliber larger than a .500 as a destructive device. Therefore the S&W 500 magnum is the best available handgun for self-defense.

After that, rationalization and justification determines what you are willing to carry and shoot.

Finally, someone else sees the truth! ;)

20170422_203330.jpg
 
We should do more ChatGPT threads like this!
No! Please, just no! (okay, Chief, we did catch the sarcastic humor;))

He needs your clothes, your boots, and your motorcycle.
And your sunglasses...

At least the OP did add a new twist to a tired and tiresome old "debate" even though AI couldn't manage to come up with anything that a couple of writers arguing the issue on the pages of Guns & Ammo back in 1990 didn't mention.
 
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