9mm vs 40 S&W vs 45 ACP: The Truth Nobody Will Say Out Loud

Every time someone compares these three calibers, the answer  is the same. It depends on your needs. All three are great. Pick the one you shoot best. That’s not an answer. That’s a refund. You came here for a ranking. I’m going to give you one. 9 mm, .40 S&W, and .45 ACP. One winner. One loser. One caliber that doesn’t deserve the hate it gets and doesn’t deserve the shelf space it’s losing.

But the ranking only makes sense after you see what these three calibers do side-by-side through the same tests. Not compared in pairs, not cherry-picked. All three, same conditions, same protocols. Because when you line them up together, the differences are smaller than the caliber debates suggest, and the ones that actually matter aren’t the ones anyone argues about. Subscribe.

Barrier Performance. This is the test that separates marketing from physics. Ammunition to go ran every major defensive load through standardized barriers. Drywall, heavy clothing, auto glass, plywood. The results across calibers tell a story the spec sheets don’t. Through heavy clothing, all three perform well. Modern hollow points in 9 mm, .

40 S&W, and .45 ACP expand reliably and penetrate to adequate depth. This is the test where bullet technology closed the gap. 20 years ago, the 9 mm couldn’t keep up. In 2026, with Federal HST, Speer Gold Dot, and Hornady Critical Duty, the clothing test is essentially a tie. All three pass. Through drywall, the story splits.

9 mm hollow points clog with drywall material and fail to expand. The bullet acts like ball ammunition, punches through, over-penetrates. The round designed for low recoil and high capacity becomes unpredictable behind a wall. The .45 ACP handles drywall better. The heavier, wider bullet carries enough mass and momentum to defeat the obstruction and [music] still expand on the other side.

Where the 9 clogs, the .45 [music] pushes through. The .40 S&W is the surprise. With 165 and 180 grain loads, the .40 defeats drywall more consistently than the 9 mm. The heavier bullet profile resists clogging. Through barriers specifically, the .40 outperforms the 9. That’s the advantage nobody mentions [music] when they’re telling you the .

40 is obsolete. Through auto glass, the .45 struggles. The slow, heavy bullet deflects [music] more than the faster, lighter rounds. The 9 and the .40 both handle angled glass better because velocity helps a bullet maintain its trajectory through an [music] angled barrier. The .

45’s subsonic speed is an advantage for suppression and [music] a disadvantage against windshields. The barrier results don’t pick a winner. They pick a specialist. 9 mm is best through clothing and glass. .40 S&W [music] is best through intermediate barriers like drywall and plywood. .45 ACP is best when barrier defeat doesn’t matter and you want maximum expansion in soft tissue without obstruction. Your home has drywall.

Your car has glass. Your attacker is wearing clothing. Decide which scenario applies to you and the barrier test picks your caliber. Subscribe. Recoil. And this is where the three-way comparison reveals something the two-way match-ups hide. A Glock 17 in 9 mm. A Glock 22 in .40 S&W. [music] A Glock 21 in .45 ACP. Three calibers on the same platform architecture from the same manufacturer.

The grip angle is identical. The trigger is identical. The only variable is the cartridge and the slide mass. The 9 mm produces roughly 3 to 4 ft lbs [music] of recoil energy. Mild. The muzzle barely moves. Follow-up shots are fast and predictable. A new shooter can fire a full magazine and keep every round on a dinner plate at 7 yd. The .

45 ACP [music] produces roughly 4 to 5 ft lbs. A push. Heavier than the nine, but spread over a longer duration because the bullet is moving slower. The muzzle rises more, but it rises smoothly. Recovery is predictable. An experienced shooter can run splits nearly [music] as fast as with a nine because the push doesn’t disrupt the grip.

The .40 S&W [music] produces roughly 5 to 6 ft lbs. The highest of the three. But recoil energy alone doesn’t explain why the .40 feels worse than the .45 [music] despite being only 1 ft lb higher. The .40’s recoil impulse is concentrated in a shorter duration. The bullet is lighter than the .45, but faster.

And the snap happens quicker than the .45’s push. It’s sharper. More abrupt. The muzzle doesn’t rise smoothly. It jerks. Shooters who fired all three on the same day consistently ranked the .40 as the least pleasant. It doesn’t kick the hardest on paper. [music] It kicks the wrong way. The impulse is compressed. Sharper. More abrupt. This is the detail that killed the .

40 S&W in law enforcement, not the ballistics, not the capacity. The recoil character made qualification scores drop compared to 9 mm >> [music] >> without providing the wound channel improvement that the .45 offers over both. The .40 gave up the 9’s ease of shooting and [music] didn’t gain the .45’s wound diameter.

It landed in the middle of both metrics without winning either. >> [music] >> Subscribe. Capacity. Everyone’s favorite argument and the most overrated factor in the debate. [music] A Glock 17 holds 17 rounds of 9 mm. A Glock 22 holds 15 rounds of .40 S&W. [music] A Glock 21 holds 13 rounds of .45 ACP. 17, 15, 13. That’s the spread.

[music] Four rounds between the highest and lowest capacity. In a Glock frame that’s already large enough that nobody [music] is pocket carrying any of them. Everyone treats this like it’s the deciding factor. It’s not and the data from actual defensive encounters proves it. Analysis of roughly 1,800 [music] documented defensive shootings found that the average civilian encounter involves three rounds fired or fewer.

Three. The 13-round .45 ACP has 10 rounds left after an average engagement. The 17-round 9 mm has 14. [music] Both have more ammunition remaining than they’ll statistically ever need. Capacity matters for enforcement responding to active threats with unknown numbers. Capacity matters for military engagements with sustained fire requirements.

For a civilian defending his home or his person, the difference between 13 and 17 is a difference between plenty and slightly more plenty. If you’re choosing a caliber based on four extra rounds you’ll statistically never fire, you’re optimizing for a scenario that data says won’t happen. And you’re ignoring the wound channel, barrier performance, and recoil differences that apply to every shot [music] you do fire.

Here’s the verdict, and I mean a verdict, not a hedge, [music] not all three are great. A ranking. First to third. Subscribe. Third place, the .40 S&W. Not because it’s a bad caliber. It’s not. Through barriers, it outperforms the 9 mm. The 180 [music] grain loads produce genuine stopping capability. Police trade-in Glock 22s cost $300, [music] and those are legitimate duty-grade firearms.

The .40 is third because it doesn’t win [music] any category outright. The nine has better recoil, more capacity, [music] and cheaper ammunition. The .45 has a wider wound channel, better expansion, and smoother recoil feel despite higher energy. The .40 splits the difference on everything [music] and wins nothing.

The industry designed it as a compromise between the nine and the .45. >> [music] >> It is exactly that, a compromise. And 36 years later, both calibers it was supposed to replace are outselling it while it slides toward discontinuation. If you own a .40 [music] and it works for you, keep it.

The ballistics are real. The prices on used guns and ammunition are the best they’ve ever been. But if you’re buying new in 2026, the .40 is the caliber you choose because it was on sale, not because it was the best option in the case. Second place, the .45 ACP. The the wound channel, the smoothest recoil feel, the best suppressor host in the handgun world, the deepest production [music] history of any semi-auto cartridge ever manufactured, 120 years of dead serious credibility.

The .45 is second [music] because of two things it can’t fix. Cost per round is 50% higher than 9 mm, which means less practice for the same budget. And capacity in carry size guns is [music] limited because the cartridge is physically large. A double stack .45 makes the grip too wide for many hands. A single stack [music] .

45 gives you seven or eight rounds in a gun that weighs more than a double stack nine holding 17. For home defense with a suppressor, the .45 [music] is unbeatable. For nightstand duty where capacity and cost don’t matter, the .45 is the best handgun cartridge manufactured. But for daily carry [music] where size, weight, and training volume determine outcomes, the .

45 asks for compromises the nine [music] doesn’t. First place, the 9 mm. Not because it hits hardest, it doesn’t. Not because it expands widest, it doesn’t. Not because it penetrates deepest, it doesn’t. Because a 17 round magazine of Federal HST 147 grain costs $400 less per year to practice with than the same volume of .45 ACP.

Because the recoil lets you put all 17 rounds into a chest [music] sized target in half the time. Because every manufacturer makes a carry gun in 9 mm that fits every hand size, every holster, and every budget. [music] And because modern hollow point technology has closed the terminal performance gap to a margin that is measurable in a lab and invisible in a gun fight.

The analysis of 1,800 defensive shootings showed all three calibers hovering between 85 and 90% incapacitation rates >> [music] >> with quality ammunition and adequate shot placement. The difference between the calibers [music] was a rounding error. The difference between a trained shooter and an untrained shooter was not.

The 9 mm lets you train more. Training more makes you shoot better. Shooting better matters more than caliber. That’s the truth nobody will say out loud because it’s bad for business. The ammunition industry sells [music] premium calibers by implying they compensate for marksmanship. They don’t. Nothing compensates for marksmanship and the cheapest path to marksmanship is the 9 mm.

Buy a nine, train with it, and stop arguing about caliber with the guys who shoot their 45 [music] twice a year because the ammunition costs too much to practice with regularly. Or buy a 45 for the nightstand and a nine for the range. That’s not a compromise. That’s a system. Subscribe.

 

 

9mm vs 40 S&W vs 45 ACP: The Truth Nobody Will Say Out Loud

 

Every time someone compares these three calibers, the answer is the same. It depends on your needs. All three are great. Pick the one you shoot best. That’s not an answer. That’s a refund. You came here for a ranking. I’m going to give you one. 9 mm, .40 S&W, and .45 ACP. One winner. One loser. One caliber that doesn’t deserve the hate it gets and doesn’t deserve the shelf space it’s losing.

[music] But the ranking only makes sense after you see what these three [music] calibers do side-by-side through the same tests. Not compared in pairs, not cherry-picked. All three, same conditions, same protocols. Because when you line them up together, the differences are smaller than the caliber debates suggest, [music] and the ones that actually matter aren’t the ones anyone argues about. Subscribe.

Barrier Performance. This is the test that separates marketing from physics. Ammunition to go ran every major defensive load through standardized barriers. Drywall, heavy clothing, auto glass, plywood. The results across calibers tell a story the spec sheets don’t. Through heavy clothing, all three perform [music] well. Modern hollow points in 9 mm, .

40 S&W, and .45 ACP expand reliably and penetrate [music] to adequate depth. This is the test where bullet technology closed the gap. 20 years ago, the 9 mm couldn’t keep up. In 2026, with Federal HST, Speer Gold Dot, and Hornady Critical Duty, the clothing test is essentially a tie. All three pass. Through drywall, the story splits.

9 mm hollow points clog with drywall material and fail to expand. The bullet acts like ball ammunition, punches through, over-penetrates. The round designed for low recoil and high capacity becomes unpredictable behind a wall. The .45 ACP handles drywall better. The heavier, wider bullet carries enough mass and momentum to defeat the obstruction and [music] still expand on the other side.

Where the 9 clogs, the .45 [music] pushes through. The .40 S&W is the surprise. With 165 and 180 grain loads, the .40 defeats drywall more consistently than the 9 mm. The heavier bullet profile resists clogging. Through barriers specifically, the .40 outperforms the 9. That’s the advantage nobody mentions [music] when they’re telling you the .

40 is obsolete. Through auto glass, the .45 struggles. The slow, heavy bullet deflects [music] more than the faster, lighter rounds. The 9 and the .40 both handle angled glass better because velocity helps a bullet maintain its trajectory through an [music] angled barrier. The .

45’s subsonic speed is an advantage for suppression and [music] a disadvantage against windshields. The barrier results don’t pick a winner. They pick a specialist. 9 mm is best through clothing and glass. .40 S&W [music] is best through intermediate barriers like drywall and plywood. .45 ACP is best when barrier defeat doesn’t matter and you want maximum expansion in soft tissue without obstruction. Your home has drywall.

Your car has glass. Your attacker is wearing clothing. Decide which scenario applies to you and the barrier test picks your caliber. Subscribe. Recoil. And this is where the three-way comparison reveals something the two-way match-ups hide. A Glock 17 in 9 mm. A Glock 22 in .40 S&W. [music] A Glock 21 in .45 ACP. Three calibers on the same platform architecture from the same manufacturer.

The grip angle is identical. The trigger is identical. The only variable is the cartridge and the slide mass. The 9 mm produces roughly 3 to 4 ft lbs [music] of recoil energy. Mild. The muzzle barely moves. Follow-up shots are fast and predictable. A new shooter can fire a full magazine and keep every round on a dinner plate at 7 yd. The .

45 ACP [music] produces roughly 4 to 5 ft lbs. A push. Heavier than the nine, but spread over a longer duration because the bullet is moving slower. The muzzle rises more, but it rises smoothly. Recovery is predictable. An experienced shooter can run splits nearly [music] as fast as with a nine because the push doesn’t disrupt the grip.

The .40 S&W [music] produces roughly 5 to 6 ft lbs. The highest of the three. But recoil energy alone doesn’t explain why the .40 feels worse than the .45 [music] despite being only 1 ft lb higher. The .40’s recoil impulse is concentrated in a shorter duration. The bullet is lighter than the .45, but faster.

And the snap happens quicker than the .45’s push. It’s sharper. More abrupt. The muzzle doesn’t rise smoothly. It jerks. Shooters who fired all three on the same day consistently ranked the .40 as the least pleasant. It doesn’t kick the hardest on paper. [music] It kicks the wrong way. The impulse is compressed. Sharper. More abrupt. This is the detail that killed the .

40 S&W in law enforcement, not the ballistics, not the capacity. The recoil character made qualification scores drop compared to 9 mm >> [music] >> without providing the wound channel improvement that the .45 offers over both. The .40 gave up the 9’s ease of shooting and [music] didn’t gain the .45’s wound diameter.

It landed in the middle of both metrics without winning either. >> [music] >> Subscribe. Capacity. Everyone’s favorite argument and the most overrated factor in the debate. [music] A Glock 17 holds 17 rounds of 9 mm. A Glock 22 holds 15 rounds of .40 S&W. [music] A Glock 21 holds 13 rounds of .45 ACP. 17, 15, 13. That’s the spread.

[music] Four rounds between the highest and lowest capacity. In a Glock frame that’s already large enough that nobody [music] is pocket carrying any of them. Everyone treats this like it’s the deciding factor. It’s not and the data from actual defensive encounters proves it. Analysis of roughly 1,800 [music] documented defensive shootings found that the average civilian encounter involves three rounds fired or fewer.

Three. The 13-round .45 ACP has 10 rounds left after an average engagement. The 17-round 9 mm has 14. [music] Both have more ammunition remaining than they’ll statistically ever need. Capacity matters for enforcement responding to active threats with unknown numbers. Capacity matters for military engagements with sustained fire requirements.

For a civilian defending his home or his person, the difference between 13 and 17 is a difference between plenty and slightly more plenty. If you’re choosing a caliber based on four extra rounds you’ll statistically never fire, you’re optimizing for a scenario that data says won’t happen. And you’re ignoring the wound channel, barrier performance, and recoil differences that apply to every shot [music] you do fire.

Here’s the verdict, and I mean a verdict, not a hedge, [music] not all three are great. A ranking. First to third. Subscribe. Third place, the .40 S&W. Not because it’s a bad caliber. It’s not. Through barriers, it outperforms the 9 mm. The 180 [music] grain loads produce genuine stopping capability. Police trade-in Glock 22s cost $300, [music] and those are legitimate duty-grade firearms.

The .40 is third because it doesn’t win [music] any category outright. The nine has better recoil, more capacity, [music] and cheaper ammunition. The .45 has a wider wound channel, better expansion, and smoother recoil feel despite higher energy. The .40 splits the difference on everything [music] and wins nothing.

The industry designed it as a compromise between the nine and the .45. >> [music] >> It is exactly that, a compromise. And 36 years later, both calibers it was supposed to replace are outselling it while it slides toward discontinuation. If you own a .40 [music] and it works for you, keep it.

The ballistics are real. The prices on used guns and ammunition are the best they’ve ever been. But if you’re buying new in 2026, the .40 is the caliber you choose because it was on sale, not because it was the best option in the case. Second place, the .45 ACP. The the wound channel, the smoothest recoil feel, the best suppressor host in the handgun world, the deepest production [music] history of any semi-auto cartridge ever manufactured, 120 years of dead serious credibility.

The .45 is second [music] because of two things it can’t fix. Cost per round is 50% higher than 9 mm, which means less practice for the same budget. And capacity in carry size guns is [music] limited because the cartridge is physically large. A double stack .45 makes the grip too wide for many hands. A single stack [music] .

45 gives you seven or eight rounds in a gun that weighs more than a double stack nine holding 17. For home defense with a suppressor, the .45 [music] is unbeatable. For nightstand duty where capacity and cost don’t matter, the .45 is the best handgun cartridge manufactured. But for daily carry [music] where size, weight, and training volume determine outcomes, the .

45 asks for compromises the nine [music] doesn’t. First place, the 9 mm. Not because it hits hardest, it doesn’t. Not because it expands widest, it doesn’t. Not because it penetrates deepest, it doesn’t. Because a 17 round magazine of Federal HST 147 grain costs $400 less per year to practice with than the same volume of .45 ACP.

Because the recoil lets you put all 17 rounds into a chest [music] sized target in half the time. Because every manufacturer makes a carry gun in 9 mm that fits every hand size, every holster, and every budget. [music] And because modern hollow point technology has closed the terminal performance gap to a margin that is measurable in a lab and invisible in a gun fight.

The analysis of 1,800 defensive shootings showed all three calibers hovering between 85 and 90% incapacitation rates >> [music] >> with quality ammunition and adequate shot placement. The difference between the calibers [music] was a rounding error. The difference between a trained shooter and an untrained shooter was not.

The 9 mm lets you train more. Training more makes you shoot better. Shooting better matters more than caliber. That’s the truth nobody will say out loud because it’s bad for business. The ammunition industry sells [music] premium calibers by implying they compensate for marksmanship. They don’t. Nothing compensates for marksmanship and the cheapest path to marksmanship is the 9 mm.

Buy a nine, train with it, and stop arguing about caliber with the guys who shoot their 45 [music] twice a year because the ammunition costs too much to practice with regularly. Or buy a 45 for the nightstand and a nine for the range. That’s not a compromise. That’s a system. Subscribe.

 

 

9mm vs 40 S&W vs 45 ACP: The Truth Nobody Will Say Out Loud

 

Every time someone compares these three calibers, the answer [music] is the same. It depends on your needs. All three are great. Pick the one you shoot best. That’s not an answer. That’s a refund. You came here for a ranking. I’m going to give you one. 9 mm, .40 S&W, and .45 ACP. One winner. One loser. One caliber that doesn’t deserve the hate it gets and doesn’t deserve the shelf space it’s losing.

[music] But the ranking only makes sense after you see what these three [music] calibers do side-by-side through the same tests. Not compared in pairs, not cherry-picked. All three, same conditions, same protocols. Because when you line them up together, the differences are smaller than the caliber debates suggest, [music] and the ones that actually matter aren’t the ones anyone argues about. Subscribe.

Barrier Performance. This is the test that separates marketing from physics. Ammunition to go ran every major defensive load through standardized barriers. Drywall, heavy clothing, auto glass, plywood. The results across calibers tell a story the spec sheets don’t. Through heavy clothing, all three perform [music] well. Modern hollow points in 9 mm, .

40 S&W, and .45 ACP expand reliably and penetrate [music] to adequate depth. This is the test where bullet technology closed the gap. 20 years ago, the 9 mm couldn’t keep up. In 2026, with Federal HST, Speer Gold Dot, and Hornady Critical Duty, the clothing test is essentially a tie. All three pass. Through drywall, the story splits.

9 mm hollow points clog with drywall material and fail to expand. The bullet acts like ball ammunition, punches through, over-penetrates. The round designed for low recoil and high capacity becomes unpredictable behind a wall. The .45 ACP handles drywall better. The heavier, wider bullet carries enough mass and momentum to defeat the obstruction and [music] still expand on the other side.

Where the 9 clogs, the .45 [music] pushes through. The .40 S&W is the surprise. With 165 and 180 grain loads, the .40 defeats drywall more consistently than the 9 mm. The heavier bullet profile resists clogging. Through barriers specifically, the .40 outperforms the 9. That’s the advantage nobody mentions [music] when they’re telling you the .

40 is obsolete. Through auto glass, the .45 struggles. The slow, heavy bullet deflects [music] more than the faster, lighter rounds. The 9 and the .40 both handle angled glass better because velocity helps a bullet maintain its trajectory through an [music] angled barrier. The .

45’s subsonic speed is an advantage for suppression and [music] a disadvantage against windshields. The barrier results don’t pick a winner. They pick a specialist. 9 mm is best through clothing and glass. .40 S&W [music] is best through intermediate barriers like drywall and plywood. .45 ACP is best when barrier defeat doesn’t matter and you want maximum expansion in soft tissue without obstruction. Your home has drywall.

Your car has glass. Your attacker is wearing clothing. Decide which scenario applies to you and the barrier test picks your caliber. Subscribe. Recoil. And this is where the three-way comparison reveals something the two-way match-ups hide. A Glock 17 in 9 mm. A Glock 22 in .40 S&W. [music] A Glock 21 in .45 ACP. Three calibers on the same platform architecture from the same manufacturer.

The grip angle is identical. The trigger is identical. The only variable is the cartridge and the slide mass. The 9 mm produces roughly 3 to 4 ft lbs [music] of recoil energy. Mild. The muzzle barely moves. Follow-up shots are fast and predictable. A new shooter can fire a full magazine and keep every round on a dinner plate at 7 yd. The .

45 ACP [music] produces roughly 4 to 5 ft lbs. A push. Heavier than the nine, but spread over a longer duration because the bullet is moving slower. The muzzle rises more, but it rises smoothly. Recovery is predictable. An experienced shooter can run splits nearly [music] as fast as with a nine because the push doesn’t disrupt the grip.

The .40 S&W [music] produces roughly 5 to 6 ft lbs. The highest of the three. But recoil energy alone doesn’t explain why the .40 feels worse than the .45 [music] despite being only 1 ft lb higher. The .40’s recoil impulse is concentrated in a shorter duration. The bullet is lighter than the .45, but faster.

And the snap happens quicker than the .45’s push. It’s sharper. More abrupt. The muzzle doesn’t rise smoothly. It jerks. Shooters who fired all three on the same day consistently ranked the .40 as the least pleasant. It doesn’t kick the hardest on paper. [music] It kicks the wrong way. The impulse is compressed. Sharper. More abrupt. This is the detail that killed the .

40 S&W in law enforcement, not the ballistics, not the capacity. The recoil character made qualification scores drop compared to 9 mm >> [music] >> without providing the wound channel improvement that the .45 offers over both. The .40 gave up the 9’s ease of shooting and [music] didn’t gain the .45’s wound diameter.

It landed in the middle of both metrics without winning either. >> [music] >> Subscribe. Capacity. Everyone’s favorite argument and the most overrated factor in the debate. [music] A Glock 17 holds 17 rounds of 9 mm. A Glock 22 holds 15 rounds of .40 S&W. [music] A Glock 21 holds 13 rounds of .45 ACP. 17, 15, 13. That’s the spread.

[music] Four rounds between the highest and lowest capacity. In a Glock frame that’s already large enough that nobody [music] is pocket carrying any of them. Everyone treats this like it’s the deciding factor. It’s not and the data from actual defensive encounters proves it. Analysis of roughly 1,800 [music] documented defensive shootings found that the average civilian encounter involves three rounds fired or fewer.

Three. The 13-round .45 ACP has 10 rounds left after an average engagement. The 17-round 9 mm has 14. [music] Both have more ammunition remaining than they’ll statistically ever need. Capacity matters for enforcement responding to active threats with unknown numbers. Capacity matters for military engagements with sustained fire requirements.

For a civilian defending his home or his person, the difference between 13 and 17 is a difference between plenty and slightly more plenty. If you’re choosing a caliber based on four extra rounds you’ll statistically never fire, you’re optimizing for a scenario that data says won’t happen. And you’re ignoring the wound channel, barrier performance, and recoil differences that apply to every shot [music] you do fire.

Here’s the verdict, and I mean a verdict, not a hedge, [music] not all three are great. A ranking. First to third. Subscribe. Third place, the .40 S&W. Not because it’s a bad caliber. It’s not. Through barriers, it outperforms the 9 mm. The 180 [music] grain loads produce genuine stopping capability. Police trade-in Glock 22s cost $300, [music] and those are legitimate duty-grade firearms.

The .40 is third because it doesn’t win [music] any category outright. The nine has better recoil, more capacity, [music] and cheaper ammunition. The .45 has a wider wound channel, better expansion, and smoother recoil feel despite higher energy. The .40 splits the difference on everything [music] and wins nothing.

The industry designed it as a compromise between the nine and the .45. >> [music] >> It is exactly that, a compromise. And 36 years later, both calibers it was supposed to replace are outselling it while it slides toward discontinuation. If you own a .40 [music] and it works for you, keep it.

The ballistics are real. The prices on used guns and ammunition are the best they’ve ever been. But if you’re buying new in 2026, the .40 is the caliber you choose because it was on sale, not because it was the best option in the case. Second place, the .45 ACP. The the wound channel, the smoothest recoil feel, the best suppressor host in the handgun world, the deepest production [music] history of any semi-auto cartridge ever manufactured, 120 years of dead serious credibility.

The .45 is second [music] because of two things it can’t fix. Cost per round is 50% higher than 9 mm, which means less practice for the same budget. And capacity in carry size guns is [music] limited because the cartridge is physically large. A double stack .45 makes the grip too wide for many hands. A single stack [music] .

45 gives you seven or eight rounds in a gun that weighs more than a double stack nine holding 17. For home defense with a suppressor, the .45 [music] is unbeatable. For nightstand duty where capacity and cost don’t matter, the .45 is the best handgun cartridge manufactured. But for daily carry [music] where size, weight, and training volume determine outcomes, the .

45 asks for compromises the nine [music] doesn’t. First place, the 9 mm. Not because it hits hardest, it doesn’t. Not because it expands widest, it doesn’t. Not because it penetrates deepest, it doesn’t. Because a 17 round magazine of Federal HST 147 grain costs $400 less per year to practice with than the same volume of .45 ACP.

Because the recoil lets you put all 17 rounds into a chest [music] sized target in half the time. Because every manufacturer makes a carry gun in 9 mm that fits every hand size, every holster, and every budget. [music] And because modern hollow point technology has closed the terminal performance gap to a margin that is measurable in a lab and invisible in a gun fight.

The analysis of 1,800 defensive shootings showed all three calibers hovering between 85 and 90% incapacitation rates >> [music] >> with quality ammunition and adequate shot placement. The difference between the calibers [music] was a rounding error. The difference between a trained shooter and an untrained shooter was not.

The 9 mm lets you train more. Training more makes you shoot better. Shooting better matters more than caliber. That’s the truth nobody will say out loud because it’s bad for business. The ammunition industry sells [music] premium calibers by implying they compensate for marksmanship. They don’t. Nothing compensates for marksmanship and the cheapest path to marksmanship is the 9 mm.

Buy a nine, train with it, and stop arguing about caliber with the guys who shoot their 45 [music] twice a year because the ammunition costs too much to practice with regularly. Or buy a 45 for the nightstand and a nine for the range. That’s not a compromise. That’s a system. Subscribe.