nice head to head. I shoot 357 sig in several m and p and glocks. All the pistols are originally 40 cal. I like the versatility of just swapping the barrel out.
Love both of these. Wish more people made .357 SIG pistols. I carry a.40 for my woods gun we only have black bear and coyote where I live so it's more than capable
@@christopherarnett2851 I use the Corbon 135gr 40S&W. They have more energy, than the Federal HST coming from a .357SIG. If that's "short and weak", that is absolutely crazy.
Point of impact changes. Recoil is roughly the same but projectile loiter is considerably different. Basically the slower .40 takes longer to exit the barrel under the same recoil, so it lands higher than .357 sig at defense ranges which is counter intuitive because as range opens up, the sig also drops less. This is not good advice.
@@robertlecrone4938 yep. Saves ppl the hassle if they know in advance. Cant just change the barrel out and you're good. You have to change the sight too or its not acceptable.
Over penetration can hit innocent bystanders. The object is to get optimum penetration and dump all the energy and imposing as much trauma as possible. That's why highway patrol use 357 sig for patrol and 40 s&w for urban carry.
@@dadtalkwithsonknowoneknows2954 copper is not as dense as lead, so with the all copper penetrators you have to use a lighter weight bullet vs a standard bullet, but at the same time where with a regular hollow point the more you speed them up the less penetration you get, you don't have that problem with penetrators or defenders!!!
Another awesome video, thank you. Yes, 10mm would be a game changer and get that bullet faster and deeper, but hey, we won't know for sure until it get's done, so we are waiting for you man, actually, the whole world is probably eager to see this match of 10mm vs sig 357 and .40 S&W.
Interesting video. I actually would have guessed the .40 going through more. With that said, my Always carry gun is a Glock 33 in .357 Sig loaded with HST Keep up the good work.
One additional request: 10mm is the round that I carry most frequently on the trail; if you get a chance to test a G20, G29, or 1911 in full power 10mm that would be interesting. Thanks.
I don't know if it was available when this video was made, but the Extreme Defender was shown to be superior for personal defense in gel tests. That's what I use now.
As I am multi caliber capable (9mm, .357 Sig., .40 S&W, 10 mm, and .45 ACP -- soon to add .460 Rowland), I'd be interested in the test accross all of the typical pistol calibers. Also the wheel gun magnums!
Same test with the Underwood Xtreme Penetrator with; 9mm, 45 acp, .40 S&W, .357 Sig, 10mm, and .357 magnum. Another interesting test would be comparing the Underwood Xtreme Penetrator against the Underwood Xtreme Defender on the Aluminum/metal panels.
I would love to see this test done with a 9mm underwood extreme penetrator. It seem like the 357 sig and the 9mm are penetrating more than the 40 s&w and 45 ACP in most of your test. Thanks for the awesome videos.
@@kevinrichardson8859- so I guess if you got hit by a dump truck going 100mph since it wouldn’t “penetrate” you there would be no damage and you’d walk away from the encounter. Or the more likely result is you’d be a closed casket splatter which should lead you to personally conclude that you might not quite understand what you’re talking about…. Because you clearly don’t…. 🤯🤯🤯🤯🤯
If....IF...you have access to a 357sig and a 45acp handgun..AND can use just simple over the counter fmj ammo...and can LEGALLY go somewhere and do some penetration "tests" for example a simple trash dumpster...or any heavy gauge sheet metal and shoot both...and see which one "daylights" (pierces) the metal and which one leaves a big dent but ricochets....it is then MAYBE you will have a better understanding of firearms ballistics and terminal performance and then stop your silly comparison of dump trucks with handgun ammunitions ....speed kills!!! ✌ ☮
Love these 357 sig tests keep them coming. Would love to see a series of videos with the difference in the big 4. 9mm,357 sig,40 cal and 45 acp against real world objects. For example have a couple small scale walls that would be in a house and maybe get some car doors from junk yard maybe a windshield. Just all types of things that could happen in a real self defense situation.
One other thing think the M&P Pro/core has a 5 inch barrel so if that was what you used it would explain why it did so well compared to 357 sig. you could get a 5" 357 sig barrel for the pro/core M&P and it would be a more straight up test. I bet the 357 sig would make it through that 5th panel.
Thanks for the time...energy & resources invested in the videos. We are definitely helped by all the data gathered. We sure appreciate it. The info gained actually encouraged me to get a 357 Sig barrel for my 40. I am really impressed. Have you shot Underwood 357 Sig 65gr. Extreme Defender? If so...what are you thoughts. Thanks.
Would you be able to do the same test for the 357 sig. in the 10 mm with the extreme penetrator? Anyway great video very informative thank you for taking the time to put it together
The 357 sig is a lot more powerful than I would have guessed, TBH, I wasn’t really aware of it, being a shotgun/rifle guy I have handguns for others to shoot. I might have to rethink handguns based on the 1400+ FPS and better than 500 ft-lbs is pretty decent for a compact weapon
I like and own them both. The 357 sig is the best barrier penetrator. The 40 is devastating in soft tissue. I’ve tested some 165-180g loads with projectile expansion over .8” 357 sig loads tend to stay below .6” expansion. Either way they are both great Rounds due to the case and extreme pressure.
The .357 Sig wins again - If you tested the hottest Underwood load in each gun the .357 would blow that .40 S&W out of the water !!!! The highest .357 Sig +P round from Underwood would go through every single one of those panels, with a unbelievable 2100 ftps. That is basically rifle velocity territory. Crazy stuff.
I may be wrong, but aren't extreme penetrators intended for big game use? I understand the entertainment of these tests but I'd like to see edc loads tested if the intent is to compare relative power of the different calibers under real world scenarios. Thanks for the effort to produce this series of tests. They are entertaining and informative. So far, my love for .357SIG has only been justified.
James Ritch I own 6 different calibers in hand guns the 357 caliber is the best all around caliber for personal caring. 30 caliber is with 22 caliber as the most made round out of all calibers . If you don’t believe me get a reload book and look at the rounds in 22 and 30 caliber family. Then look at speed per foot of the caliber per all other sizes.
@@billyjack6658 yes. I uploaded a 357 sig vs 10mm video last month. I'm currently waiting on some ammo from Underwood to get my next test done with the extreme penetrators.
Why is the advertised velocity of the 140 grain 40 S&W (1200 fps) slower than the 155 grain 40 S&W JHP (1300 fps)? Seems to me the 140 grain projectile should be hovering around the 1375 fps range.
Only way for a true test is to take the .40 out of casing grind down to same grain as .357 sig and retest . All the ammo is different grains so none of these tests are accurate til you match bullet weights , mite as well use 22lr vs .40cal 60 grain civil defense rounds . Thanks for trying tho .
ninja scout I agree ...this does not compare apples to apples as is evident before the shots are fired.. The major differences in energy is the telling tale... A head to head test of equal energies is more informative even if using different bullet weights. Only then could one determine which "bullet" performs better.
@K Hawk wrote: "...different calibers with the same weight." Everyone keeps skipping over this. These are DIFFERENT CALIBERS. Since they have different diameters, why are we worried about having the same weight? To keep this scientific, Fudd's first law of motion states that "If you push anything hard enough, it must fall over." There is a little known corollary to that law which states "skinny things penetrate easier than fat things." That is why nails are long and thin instead of being short and squat. I could therefore have predicted that a .357diameter projectile would out penetrate one of .40 diameter. All silliness aside, this was a test of two readily available calibers which fit into the same niche market. They are both primarily serious business rounds, rather than target rounds, or test rounds. Both are from the same manufacturer. Both are designed for maximum penetration. Both fit into the same sized firearm. I consider this a valid test when keeping in mind all those caveats. Now if I am ever attacked by a gang of sheet aluminum...
It seems to me - that a valid comparison would be between "If I was to carry a 40 cal, here is the ammo I'd probably use" VS "If I was to carry a 357, here is the ammo I'd probably use." I don't think I'd ever buy ammo (for any gun) and alter it's characteristics by filing down some of the weight off the bullets.
Damn you actually have an M&p 357 sig. I had the compact and it would lock open sometimes before the mag was empty... I sold it and bought a Glock 33 and have not turned back. Still have my m&p 2.0 FDE 5 inch with a 357 sig barrel though and I’m thinking about doing the same but with a shield.
Yeah. I had the 357C back in the day. I traded that off and bought the fullsize. It is now the only 1.0 I still have left. I replaced them all with 2.0s. Thanks for watching.
The Penetration Channel you should be able to use the 357 sig barrel in a 2.0 40 cal. If you’re like me, you probably prefer it with the 357 stamp on the slide, but the 2.0 lower is a bit more durable. Just FYI.
The Penetration Channel also, if you’re interested in ballistics and FPS.. check out KKM precision. If you want to get some good power out of those underwood rounds (especially the 65 grain 357 sig extreme defender) KKM will make you a 5 inch barrel that fits the pro series 1.0/ FDE 2.0 40s that get 2200 plus FPS out of the 65 grain round. I’m currently waiting on a 6 inch 357 sig barrel for my Glock 24. I am also looking into the 357 sig just right carbine... very curious to see what they’d get on a 17 inch barrel.
This whole series is very informative Our local Law enforcement agencies are going from 40 to 9!mm obliviously thy don’t watch your channel I have to sig sauers both in 357 Sig I use underwood ammo
These rounds work through supercavitation. They should be able to shoot through water with very little loss in velocity. I'd like to see a video testing that.
Having owned both calibers, I would say for guns in stock form, the 357sig obviously offers hotter rounds that deliver more FT lbs energy, this is a fact. Also, the 40+p stuff I wouldn't feel safe in most stock guns(they suggest aftermarket barrels for hot 40 rounds etc). That being said, a 357sig case is actually longer, and has thicker casing walls than a 40 casing, for added strength. A 357sig is not just a necked down 40. Both are great, but I would place the 357sig and 10mm up at the top as far as energy, with 45 and 40 and the 9 not far behind. All get the job done!
awesome vid, i would love too see a video where you put ballistic gel or wet pack behind behind a car or truck door.. that would be pretty interesting trying out jhp's and fmj for both the 357sig and the 40s&w
I have a 92x (9mm) because we have close neighbors like a townhouse and old people across the street so I don't want to harm anyone. I ordered a couple of federal hollow points still in the box. My son uses federal rounds only. He has a good job.
They aren't that different. The actual size of the 357sig is .355" the .40 is well .40" a difference of .045" to put that in context, notebook paper is about .005" so the difference is only 9 sheets of paper. When talking about diameter, split that 9 in half... so 4.5 sheets of paper wrapped around the 357sig bullet makes it the same diameter as a .40S&W.
@@thenewgunnertrw2025 You forgot that diameter is a linear 1 dimensional measurement while surface area is a 2 dimensional measurement. The area of a circle that's .355 inches wide is 0.1 sq inches. While the area of a circle that's .4 inches wide is 0.13 sq inches. So the .40 is making a 30% larger hole.
Great info! ,I switched to 357sig yrs ago, keep the 40 for practice and JIC. I would really like to see how the 357 mag (GP100 4") underwood 180 gr hardcast vs the 10mm (G20 or P220) 200 gr hard cast...Call the southern bear gun in the woods comparison
Hey! What light do you have on your M&P? Can you tell me the Brand/Model/Output? I like how short it is! Also Glad you made this vid, it confirms what I was thinking. It will def over penetrate inside a house type setting, and I dont want my ammo to just poke a small hole thru then just go right out not causing fragmentation or tumbling. This type ammo would be more for firing into a vehicle being able to penetrate windshields and sheet metal.
Here's a link to the one i have www.midwayusa.com/product/678567/insight-tech-gear-x2-sub-compact-tactical-illuminator-flashlight-halogen-bulb-fits-picatinny-or-glock-style-rails-polymer-black I also like the length of it. I hate lights that stick out further than the barrel.
Great video I carry a 40 in the US and abroad it does great job. Say anything you want I love my 40. I'm very worried about over penetration. Also 40mil ammunition is more available than 357sig in Central America have a great day finding 357sig.
Thank you for getting back to me. So what what are the velocity readings for the 357 sig. extreme penetrator? If you like maybe I can send you my Clock 20 so you can test it. Let me know. Of course I would have to send her to an FFL dealer
Thanks for these! I've got a 10mm, and I'm trying to decide what I should get next. I think a 357/40 combo may be in order. Certainly helps me see the possibilities in these rounds.
Hello great video. I understand that the muzzle velocity of the 357 sig. is 1450 ft./s. Did you get an actual reading from that ammunition ? If so what is it
Besides the 40 cal Underwood Penetrator you test, Underwood makes a 40 cal Defender - lighter, but faster projectile. How do those two rounds compare, and does the Penetrator penetrate too much on people vs. medal plates, so as to be dangerous in a public setting?
Sam Taylor I agree I had some incredible performance out of my glock 29 with an after market 6 in barrel using the extreme penitraton round. The 10mm real seems to take advantage of the loge barrel.
Oh wow! I’m surprised. Why? Because when you did 9 v 357 sig v 40 v 45 v aluminum plates, firing only white box ammo, your 357 Sig penetrated to and stopped at the 7th and so I expected even better performance. Any theories?
An excellent test of hard barriers with two very powerful rounds. Thank you for doing this.
Love your videos you KEEP IT SIMPLE AND TO THE POINT
GREAT JOB
Thank you for watching.
Nice Job !!!
nice head to head. I shoot 357 sig in several m and p and glocks. All the pistols are originally 40 cal. I like the versatility of just swapping the barrel out.
me myself and I excellent. thats the best of both worlds. thanks for watching..
Did you ever try shooting 357 sig trough 40 S&W barrel ? I heard one guy said he tried one mag and it worked but he wasn't sure if it was safe ...
its not safe at all 40sw has a chamber pressure of 9k psi 357 sig by comparison is 35k psi.
SINESTERSERPENTSIXXX ...
SINESTERSERPENTSIXXX. Yes it is.
good video. even tho 357 SIG won I still love the 40cal its my favorite caliber
357s didn't really win. the 40 was an embarrassingly weak load. but that is how they rig the caliber 'game'
Love both of these. Wish more people made .357 SIG pistols. I carry a.40 for my woods gun we only have black bear and coyote where I live so it's more than capable
I'm pretty sure some hard cast .40 would handle just about anything on 2 or 4 legs. Thanks for watching.
@@ThePenetrationChannel . That's what I carry in it also the extreme penetrators
Thanks, Gotta Love the Underwood Extreme Penetrators and extreme Defenders. :)
Thanks for watching. I have a test video this weekend featuring the .40, 357 Sig, and 10mm using Underwood Extreme Penetrators.
*So basically to sum it up...*
*40S&W - Slightly Bigger HOLE. .357SIG - Slightly Deeper PENETRATION.*
Isnt that the trade off for ALL calibers?
As long as it gets the job done the the SW 40 is on with me, just use hot loads for the 40 Cal.
@@christopherarnett2851 I use the Corbon 135gr 40S&W. They have more energy, than the Federal HST coming from a .357SIG.
If that's "short and weak", that is absolutely crazy.
Not slightly bigger it is 27 % larger area,the 40 is doing more work overall.
10mm would make a hole the size of a 40 but with the penetration of a .357 sig
This is exactly what I was looking for. Currently using .40 S&W 140 Underwood extreme penetrator as my EDC
Great video, very informative. I like the 357 SIG more and more.
40 at the range...
-quick barrel change-
.....357 for the carry
Point of impact changes. Recoil is roughly the same but projectile loiter is considerably different. Basically the slower .40 takes longer to exit the barrel under the same recoil, so it lands higher than .357 sig at defense ranges which is counter intuitive because as range opens up, the sig also drops less. This is not good advice.
@@remasteredretropcgames3312 i have both barrels for my p226 and the 357sig definitely changes the point of aim couple inches low
@@robertlecrone4938 yep. Saves ppl the hassle if they know in advance. Cant just change the barrel out and you're good. You have to change the sight too or its not acceptable.
Over penetration can hit innocent bystanders. The object is to get optimum penetration and dump all the energy and imposing as much trauma as possible. That's why highway patrol use 357 sig for patrol and 40 s&w for urban carry.
357sig is meant to have a little more power and penetration than 40. It is very comparable to 10mm depending on the load.
Very cool. I'd like to see a comparison of the .357 sig in 65 and 90 grain xtreme penetrator rounds which have some serious velocity and power.
The 357 SIG it's best rated with a 124 grain bullet
@@dadtalkwithsonknowoneknows2954 copper is not as dense as lead, so with the all copper penetrators you have to use a lighter weight bullet vs a standard bullet, but at the same time where with a regular hollow point the more you speed them up the less penetration you get, you don't have that problem with penetrators or defenders!!!
I am planning on a barrel conversion for a Glock 20 to 357 Sig. This sealed the deal for me. Thanks for the video
Thanks for watching.
no big surprise. a high pressure bottlenecked round is great at penetration.
That's what she said' ;|) LoL
Exactly the results I expected.
Another awesome video, thank you. Yes, 10mm would be a game changer and get that bullet faster and deeper, but hey, we won't know for sure until it get's done, so we are waiting for you man, actually, the whole world is probably eager to see this match of 10mm vs sig 357 and .40 S&W.
I bet they'd both stop on the 5th panel.
Interesting video. I actually would have guessed the .40 going through more.
With that said, my Always carry gun is a Glock 33 in .357 Sig loaded with HST
Keep up the good work.
One additional request: 10mm is the round that I carry most frequently on the trail; if you get a chance to test a G20, G29, or 1911 in full power 10mm that would be interesting. Thanks.
charles dickens Its in the works. thanks for watching.
A lot better test this time, very good job.
your channel is awesome! please keep posting videos like that! Looking forward to seeing more videos with 9mm penetration tests !
Gustavo Zaratini Constantino Will do. Thank you for watching.
I don't know if it was available when this video was made, but the Extreme Defender was shown to be superior for personal defense in gel tests. That's what I use now.
Excellent choice of ammo for this test!
Great video. Thank you. Now I know the difference. Thanks again!
As I am multi caliber capable (9mm, .357 Sig., .40 S&W, 10 mm, and .45 ACP -- soon to add .460 Rowland), I'd be interested in the test accross all of the typical pistol calibers.
Also the wheel gun magnums!
Thank you. Just ordered some of this Underwood in .40
N_ R awesome round! Thanks for watching.
It would be interesting to see the 7.62 Tokarev vs 357 sig
I almost bought a tokarev... Still debating on it I like the m57
We need some modern guns as ammo in the tokarev caliber.
finally someone does this review!!
Could you please do the same test using the 357 sig. extreme penetrator in the 10 mm extreme penetrator? Thank you great video
Yes. I have some on order. But Underwood is a little behind on their shipping right now, which I can totally understand. Thanks for watching.
This is a great video... good rounds to compare.. that 40s/w ain’t nothing to ignore
Same test with the Underwood Xtreme Penetrator with; 9mm, 45 acp, .40 S&W, .357 Sig, 10mm, and .357 magnum.
Another interesting test would be comparing the Underwood Xtreme Penetrator against the Underwood Xtreme Defender on the Aluminum/metal panels.
I would love to see this test done with a 9mm underwood extreme penetrator. It seem like the 357 sig and the 9mm are penetrating more than the 40 s&w and 45 ACP in most of your test. Thanks for the awesome videos.
yeah they penetrate more, but do less damage.
@@Wildwestwrangler penetration IS damage 😂 & energy = damage🤔 40sw "damaged" 4 panels...357sig "damaged" 5 panels...5 is MORE than 4 isn't it?
@@kevinrichardson8859- so I guess if you got hit by a dump truck going 100mph since it wouldn’t “penetrate” you there would be no damage and you’d walk away from the encounter. Or the more likely result is you’d be a closed casket splatter which should lead you to personally conclude that you might not quite understand what you’re talking about…. Because you clearly don’t…. 🤯🤯🤯🤯🤯
@@thundrune1554 dump trucks and cars are NOT good analogies for firearms ballistics...good try though..it sounds good to the less intelligent
If....IF...you have access to a 357sig and a 45acp handgun..AND can use just simple over the counter fmj ammo...and can LEGALLY go somewhere and do some penetration "tests" for example a simple trash dumpster...or any heavy gauge sheet metal and shoot both...and see which one "daylights" (pierces) the metal and which one leaves a big dent but ricochets....it is then MAYBE you will have a better understanding of firearms ballistics and terminal performance and then stop your silly comparison of dump trucks with handgun ammunitions ....speed kills!!! ✌ ☮
Good comparison...great test
Love these 357 sig tests keep them coming. Would love to see a series of videos with the difference in the big 4. 9mm,357 sig,40 cal and 45 acp against real world objects. For example have a couple small scale walls that would be in a house and maybe get some car doors from junk yard maybe a windshield. Just all types of things that could happen in a real self defense situation.
One other thing think the M&P Pro/core has a 5 inch barrel so if that was what you used it would explain why it did so well compared to 357 sig. you could get a 5" 357 sig barrel for the pro/core M&P and it would be a more straight up test. I bet the 357 sig would make it through that 5th panel.
I have the M&P 40 pro series with the 4.25" barrel. Thanks for watching.
Thanks for the time...energy & resources invested in the videos. We are definitely helped by all the data gathered. We sure appreciate it. The info gained actually encouraged me to get a 357 Sig barrel for my 40. I am really impressed. Have you shot Underwood 357 Sig 65gr. Extreme Defender? If so...what are you thoughts. Thanks.
Guardians Minifarm never tried those. Will have to take a look at them. Thanks for watching.
Good job great test
Would you be able to do the same test for the 357 sig. in the 10 mm with the extreme penetrator? Anyway great video very informative thank you for taking the time to put it together
Great vid man. You got a new subscriber in me. Keep up the great work can not wait for next vid.
Awesome! Thanks for watching, and subscribing. New tests coming soon!
I wonder how the Underwood 125 grain flat nose 357 sig would do? I think it's 1475 fps
Kj Guitar that would be interesting. id like to see that also
40. Hits hard
The 357 sig is a lot more powerful than I would have guessed, TBH, I wasn’t really aware of it, being a shotgun/rifle guy I have handguns for others to shoot. I might have to rethink handguns based on the 1400+ FPS and better than 500 ft-lbs is pretty decent for a compact weapon
Its easily one of my favorite calibers for accuracy and performance. Thanks for watching.
I like and own them both. The 357 sig is the best barrier penetrator. The 40 is devastating in soft tissue. I’ve tested some 165-180g loads with projectile expansion over .8” 357 sig loads tend to stay below .6” expansion. Either way they are both great Rounds due to the case and extreme pressure.
cool video! thank u. i had no idea they were so close in penetration
The .357 Sig wins again - If you tested the hottest Underwood load in each gun the .357 would blow that .40 S&W out of the water !!!! The highest .357 Sig +P round from Underwood would go through every single one of those panels, with a unbelievable 2100 ftps. That is basically rifle velocity territory. Crazy stuff.
I may be wrong, but aren't extreme penetrators intended for big game use? I understand the entertainment of these tests but I'd like to see edc loads tested if the intent is to compare relative power of the different calibers under real world scenarios. Thanks for the effort to produce this series of tests. They are entertaining and informative. So far, my love for .357SIG has only been justified.
Please do this same test with the same ammo in 10mm. Thanks.
He did. It was a tie!
@@357Franknitty looks like 10mm won. Both great rounds though.
Hey great video-thank you!
Personally, I believe the 357 sig is the best pistol round in the world.
My personal carry, I would have no other, ever.
I agree ☝️
10mm. Versatility. Change the ammo and it can serve for anything.
I wouldn't dare go that far...
James Ritch I own 6 different calibers in hand guns the 357 caliber is the best all around caliber for personal caring. 30 caliber is with 22 caliber as the most made round out of all calibers . If you don’t believe me get a reload book and look at the rounds in 22 and 30 caliber family. Then look at speed per foot of the caliber per all other sizes.
Awesome video!
Striker Fired thanks for watching!
I like the way the 40 has the core series palm swells I got one put on my work pistol
Real FAIR SHAKE for that 40 love the content
great video thank you very much. well detailed and very controlled test.
Thanks for watching.
@@ThePenetrationChannel Are you still making these videos?
@@billyjack6658 yes. I uploaded a 357 sig vs 10mm video last month. I'm currently waiting on some ammo from Underwood to get my next test done with the extreme penetrators.
Haha just found this channel I love the name. Who doesn't like penetration and now it's got its own channel lol
Wow people will always find something to bitch about same gun same ammo brand not enough for some people. Great video man keep it up
Thanks for watching!
Great show
How about comparing Underwood xtreme penetrator rounds to underwood hardcast
Now that's a great idea. Thanks for watching!
Why is the advertised velocity of the 140 grain 40 S&W (1200 fps) slower than the 155 grain 40 S&W JHP (1300 fps)? Seems to me the 140 grain projectile should be hovering around the 1375 fps range.
good to see some Underwood ammo, I always thought they loaded those Leigh's just as hot as their other loads.
Only way for a true test is to take the .40 out of casing grind down to same grain as .357 sig and retest . All the ammo is different grains so none of these tests are accurate til you match bullet weights , mite as well use 22lr vs .40cal 60 grain civil defense rounds . Thanks for trying tho .
ninja scout
I agree ...this does not compare apples to apples as is evident before the shots are fired..
The major differences in energy is the telling tale...
A head to head test of equal energies is more informative even if using different bullet weights. Only then could one determine which "bullet" performs better.
Right BUTT you're not gonna find different calibers with the same weight.
@K Hawk wrote: "...different calibers with the same weight." Everyone keeps skipping over this. These are DIFFERENT CALIBERS. Since they have different diameters, why are we worried about having the same weight? To keep this scientific, Fudd's first law of motion states that "If you push anything hard enough, it must fall over." There is a little known corollary to that law which states "skinny things penetrate easier than fat things." That is why nails are long and thin instead of being short and squat. I could therefore have predicted that a .357diameter projectile would out penetrate one of .40 diameter.
All silliness aside, this was a test of two readily available calibers which fit into the same niche market. They are both primarily serious business rounds, rather than target rounds, or test rounds. Both are from the same manufacturer. Both are designed for maximum penetration. Both fit into the same sized firearm. I consider this a valid test when keeping in mind all those caveats. Now if I am ever attacked by a gang of sheet aluminum...
It seems to me - that a valid comparison would be between "If I was to carry a 40 cal, here is the ammo I'd probably use" VS "If I was to carry a 357, here is the ammo I'd probably use."
I don't think I'd ever buy ammo (for any gun) and alter it's characteristics by filing down some of the weight off the bullets.
@Keith bridges 40 would have had the same results as the 357 IMHO with a 135 grain.
Great video.
Great test.
Thanks for watching!!
try the 200gr 40 by double tap. its some really nice stuff
This video needs more views
Well thanks for adding yours to it.
Test the 357sig against 10mm and 357mag
Yes please!
Yes and test them on a dead grizzly bear.
Several dit versions on 10mm and 357Sig - different manufacturers make very different ammo.
357 still coming out on top bud
Damn you actually have an M&p 357 sig. I had the compact and it would lock open sometimes before the mag was empty... I sold it and bought a Glock 33 and have not turned back. Still have my m&p 2.0 FDE 5 inch with a 357 sig barrel though and I’m thinking about doing the same but with a shield.
Yeah. I had the 357C back in the day. I traded that off and bought the fullsize. It is now the only 1.0 I still have left. I replaced them all with 2.0s. Thanks for watching.
The Penetration Channel you should be able to use the 357 sig barrel in a 2.0 40 cal. If you’re like me, you probably prefer it with the 357 stamp on the slide, but the 2.0 lower is a bit more durable. Just FYI.
@@FilmThePoliceFTP that's true. I definitely like the 2.0 model more than the previous gen.
The Penetration Channel also, if you’re interested in ballistics and FPS.. check out KKM precision. If you want to get some good power out of those underwood rounds (especially the 65 grain 357 sig extreme defender) KKM will make you a 5 inch barrel that fits the pro series 1.0/ FDE 2.0 40s that get 2200 plus FPS out of the 65 grain round. I’m currently waiting on a 6 inch 357 sig barrel for my Glock 24. I am also looking into the 357 sig just right carbine... very curious to see what they’d get on a 17 inch barrel.
Good video!
Thanks for taking the time to watch.
This whole series is very informative
Our local Law enforcement agencies are going from 40 to 9!mm obliviously thy don’t watch your channel
I have to sig sauers both in 357 Sig
I use underwood ammo
These rounds work through supercavitation. They should be able to shoot through water with very little loss in velocity. I'd like to see a video testing that.
Nice and educational
Thanks for watching.
Having owned both calibers, I would say for guns in stock form, the 357sig obviously offers hotter rounds that deliver more FT lbs energy, this is a fact. Also, the 40+p stuff I wouldn't feel safe in most stock guns(they suggest aftermarket barrels for hot 40 rounds etc). That being said, a 357sig case is actually longer, and has thicker casing walls than a 40 casing, for added strength. A 357sig is not just a necked down 40. Both are great, but I would place the 357sig and 10mm up at the top as far as energy, with 45 and 40 and the 9 not far behind. All get the job done!
Great analogy. Thanks for watching.
It looks like the .40S&W “Punched” Through the first panel while the .357 Sig “Fused” its way through.
Good test
awesome vid, i would love too see a video where you put ballistic gel or wet pack behind behind a car or truck door.. that would be pretty interesting trying out jhp's and fmj for both the 357sig and the 40s&w
I have a 92x (9mm) because we have close neighbors like a townhouse and old people across the street so I don't want to harm anyone. I ordered a couple of federal hollow points still in the box. My son uses federal rounds only. He has a good job.
The 40s hole was a lot bigger then the 357
They aren't that different. The actual size of the 357sig is .355" the .40 is well .40" a difference of .045" to put that in context, notebook paper is about .005" so the difference is only 9 sheets of paper. When talking about diameter, split that 9 in half... so 4.5 sheets of paper wrapped around the 357sig bullet makes it the same diameter as a .40S&W.
0.045 is all
I thought that too.
@@thenewgunnertrw2025 You forgot that diameter is a linear 1 dimensional measurement while surface area is a 2 dimensional measurement. The area of a circle that's .355 inches wide is 0.1 sq inches. While the area of a circle that's .4 inches wide is 0.13 sq inches. So the .40 is making a 30% larger hole.
@@thenewgunnertrw2025 40 is bigger then 9 that is what 357 sig is a 9 bullet with necked down 10mm casing
Shooting the extreme penetrator rounds, on the Penetration channel, huh, makes sense :)
Love my 357 Sig!
I’d like to see you add a 9 mm plus P cartridge in the mix
Great info! ,I switched to 357sig yrs ago, keep the 40 for practice and JIC. I would really like to see how the 357 mag (GP100 4") underwood 180 gr hardcast vs the 10mm (G20 or P220) 200 gr hard cast...Call the southern bear gun in the woods comparison
Thanks for this video. I’d love to see a side by side of these two rounds into ballistics gel.
how about a video of a 10mm vs 357 Sig?
Why?
Would like to see you test the Barnes 40 cal 155 grain and also the Barnes 40cal 125 grain on this test
nice job
I'd like to see these two rounds tested on large metal dumpsters.
Hey! What light do you have on your M&P? Can you tell me the Brand/Model/Output? I like how short it is! Also Glad you made this vid, it confirms what I was thinking. It will def over penetrate inside a house type setting, and I dont want my ammo to just poke a small hole thru then just go right out not causing fragmentation or tumbling. This type ammo would be more for firing into a vehicle being able to penetrate windshields and sheet metal.
Here's a link to the one i have
www.midwayusa.com/product/678567/insight-tech-gear-x2-sub-compact-tactical-illuminator-flashlight-halogen-bulb-fits-picatinny-or-glock-style-rails-polymer-black
I also like the length of it. I hate lights that stick out further than the barrel.
thanks!!
Thanks
Wonder what the .40 would do out of a 16" barrel?
about the same as would out of a 6" barrel... Suck.
Great video
I carry a 40 in the US and abroad it does great job.
Say anything you want I love my 40.
I'm very worried about over penetration.
Also 40mil ammunition is more available than 357sig in Central America have a great day finding 357sig.
I'm sure "40mil" ammo would be quite expensive as well. Thanks for watching.😂😂😂
Thank you for getting back to me. So what what are the velocity readings for the 357 sig. extreme penetrator? If you like maybe I can send you my Clock 20 so you can test it. Let me know. Of course I would have to send her to an FFL dealer
You do understand that after the first shot the panel fell back which changed the whole test?
nice comparison. any regular fmj tests?
boedude the test video right before this is regular fmj.
Thanks for these! I've got a 10mm, and I'm trying to decide what I should get next. I think a 357/40 combo may be in order. Certainly helps me see the possibilities in these rounds.
B Miller thank you for watching. The 10mm is next on my "To Buy" list.
I'd love to see you do some tests with that round.
It would also be good to see these Extreme Penetrators compared with Cor-Bon's DPX.
Good stuff
Hello great video. I understand that the muzzle velocity of the 357 sig. is 1450 ft./s. Did you get an actual reading from that ammunition ? If so what is it
Besides the 40 cal Underwood Penetrator you test, Underwood makes a 40 cal Defender - lighter, but faster projectile. How do those two rounds compare, and does the Penetrator penetrate too much on people vs. medal plates, so as to be dangerous in a public setting?
Did you do the same test but the 10 mm?
Haven't yet. Still trying to get my hands on a Gen 5 Glock 20.
I would like to see the 7.62x25 stands up in a penetrator tst vs 357sig and the 40 s&w.job well done!
great video. can you test the 10mm extreme penetrator?
Sam Taylor yep...trying to get my hands on a Glock 20 as we speak.
The Penetration Channel awsome. Thanks
Sam Taylor I agree I had some incredible performance out of my glock 29 with an after market 6 in barrel using the extreme penitraton round. The 10mm real seems to take advantage of the loge barrel.
Oh wow! I’m surprised. Why? Because when you did 9 v 357 sig v 40 v 45 v aluminum plates, firing only white box ammo, your 357 Sig penetrated to and stopped at the 7th and so I expected even better performance. Any theories?
Finally someone uses a lighter faster bullet than the 180 gr. I always use 165 gr on pratice ammo.
Manuel Leos thanks for watching.
Underwood ammo is good stuff!