Which caliber is best suited for barrier penetration (I'm

>>33716627
25mm

.40 is best in that category along with still being as shootable and high capacity as 9mm

This is actually why a lot of LE agencies pick .40, it's great for shooting through auto glass which is a concern for LE given that most shootings occur at traffic stops.

>>33716627
Heres a vid on a windshield. https://m.youtube.com/watch?v=eJgFt6JWxyc

Most will easily penetrate but depending on the bullet and what it hits they may fragment earlier then wanted. Either way i wouldn't want to be on the other side of any of these.

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>>33716627
9X39

>>33716627
Just talking penetration? Hot loaded 10mm

>>33716627
10mm is the most powerful out of all of those rounds.

>>33716675
thanks

>>33716695
excellent, thx for the vid

>>33716675
Interesting.

OP cop slayer confirmed?

>>33716675
NC highway Patrol (hate those faggots) shoot .357sig because it supposedly is really good with shooting through glass.

>>33716627
5.7x28

>>33716627
>most likely to penetrate barriers
A hot 10mm
>most likely to penetrate barriers while being affordable, available, common, controllable, and high cap
.40 S&W

Something like .40 in HST would be your best bet.

Not that barrier penetration is a handgun thing, but obvi the 10mm. Can load pretty hot and a variety of penetrative slug options (bonded HPs, hunting slugs and hard cast solids up to the mid 200s in weight.)

>>33716807
So does the Secret Service

>>33716675
>>33716713
>>33716772
r u dum

>>33716675
WRONG. .40 is a cut down version of 10mm, which the fbi selected for service after the 1986 miami shootout where fbi agents loaded with +p. .38s and light loaded 9mm had trouble taking down the unarmored, un drugged attackers, even after it was found during autopsies that once of the agents managed to land a hit that went through a long and would have continued into the heart but stopped short, probably the most lethal shot you could get had it not stopped, and failed to effectively stop the attacker for several minutes. After fbi agents (Read WOMEN) couldnt qualify effectively with 10mm they developed .40 which had all of the penetration of .38 and all of the capacity of 10mm.

Recently the fbi announced it is dropping .40 and going back to 9mm following recent advances in bullet technology.

Most police departments that use .40 do so because of the massive rebates of guns chambered in .40, also the reason why glock is so popular, not because they are good, but because they are cheap.

Tldr: the phrase ".40 short and weak" is there for a reason.

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>>33716675
>>33716995
forgot pic

7.62x25

>>33716995
>the penetration of .38 and all of the capacity of 10mm.
you mean the other way around, right?

>>33716995
Is this a copy pasta? Is this new?

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>>33717028
>.40 has the same penetration of 10mm

>>33716904
>affordable
wow less than 10cpr difference, so expense, much cash money
>available
Every LGS I've walked into has had 10mm.
>common
See above. You can get Glocks, 1911s, CZ-alikes, and a few neat little subguns in 10mm.
>controllable
Git gud.
>high cap
10mm has identical capacity to .40 you fucking retard. .40S&W is just 10mm-short.

are .40 fags retarded or whats happening here.

>>33716627
Of what you've posted I'd guess some particularly hot 10mm. Were I to get a handgun for the express purpose of penetrating "barriers" I'd probably go with a .454 casull revolver, with proper loads it should defeat anything but plate.

>>33717098
>everyone agrees .40
>Hurrrrrrr .40 still bad :( agree with me guise :'(
You're an idiot

If you mean pistol rounds, probably .40 like the other guy said. For rifle cartridges, I could meme you and say .338 as the smallest that fills that category, but 7.62 is probably the more reasonable option. That said, the US Army during the occupation of Afghanistan realized 5.56 is shit for it, 7.62 NATO wasn't good enough and tried to court arms manufacturers into providing a round that could easily penetrate intermediate barriers like you mentioned without changing the profile of the weapons they're used to. I remember hearing something about the .50 Beowulf being developed for that to be used in modified ARs at checkpoints, but it never went anywhere.

>>33717123
Considering the FBI is dropping 40 for 9mm, your still retarded

>>33716627
Xtreme Penetrators in 10mm loaded by Underwood Ammo.

Remember lads. KE=0.5m(v^2)
If you can't determine which of these has more energy behind it then you are a pillock

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>>33717065
>wow less than 10cpr difference, so expense, much cash money
I'm right.
>Every LGS I've walked into has had 10mm.
Is it available at Walmarts , academies? I'm right again
>See above. You can get Glocks, 1911s, CZ-alikes, and a few neat little subguns in 10mm.
.40S&W is more common than 10mm. I'm right x3
>Git gud
Nod an argumend

>10mm has identical capacity to .40 you fucking retard. .40S&W is just 10mm-short.
At a larger grip/frame size.

You just blew yourself out my dude. Is baby trying to justify his snowflake expensive 10mememeter gun?

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>>33717134
>Oversized 9mm

No thanks.

>>33717171
>calling 10mm a meme round while unironicallly suggesting fuddlore supreme round instead

Your argument is better than that 10mm fags, but you're still rooting for .40... Use your powers for good, not fuddlore.

.357 SIG is great a penetrating barriers

>>33717171
Not him, but
>argues about ammo pricing
>buys ammo at Walmart
Jesus Christ man, hope your folks are cashing in those tard bucks for keeping you.

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>>33716904
>high capacity
Your opinion is discredited because your clearly don't understand how boolits function. Hint: they're the same diameter you fucking mongoloid

>>33717171
>Is it available at Walmarts , academies?

Not him, but yes.

That said, I live in TX and the Academies near my house are some of the most active in the state for firearm sales, or so I've been told while waiting for BGCs to go through. I can even get stuff like 5.7x28 with ease.

>>33717214
>>33717194
>>33717206
I've triggered 10mm faggots .40S&W is the better round and 10mm will forever be relegated to the katana wielding autist dust bin of history.

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>>33716627

>>33717305
>for when the FBI has to stop some guy with a tank

>>33716627
Well for one you'll want ball ammunition.

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>>33716627
.500 S&W Magnum

>>33716627
.50 BMG

>You are now aware that nobody ever said anything about pistol calibers

>>33716627
10mm is the only correct answer

.40 just werks

speed and weight affect penetration from my experience .357 sig loaded to spec really zips through shit
ive seen .45 acp bounce of shit past 25 yards if theres strange angles involved

>>33717146
>your retarded
>your

>>33718040
>idonthavetofacemyargumentbecausegrammarlol.jpeg

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>>33716627
>>33716675
>>33717098
>>33717123
>>33717146
Daily reminder that the FBI is reverting back to 9mm solely for their female agents.

9mm is literally a woman's round.

>>33718075
see
>>33718090

How will ninefags ever recover?

>>33718090
they dropped 10mm and adopted .40 for their female agents.
They're dropping .40 and going back to 9mm because if you cant have 10mm you might as well have something that isnt junk.

>>33716627
.357 SIG is pretty good, but if you are looking for a non-meme caliber, a hardcast 9mm +P will serve you well.

Well, muh .45 has less POI deflection than .40 and 9 when shooting through a windshield. So liklihood of getting a hit, .fuddy5 wins. Also retained mass and energy after deflection from windshield favor the .45.

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>>33717315
>That one time where it actually happened, as some guy put together parts from bulldozers to make a giant steel fortress on wheels.

>>33718244
Um, sorry sweety, but .357 SIG (it's actually .355) is the future. Bottle-necked cartridges feed better and Siggy can bust through anything that isn't armor.

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>>33716627
Hand's down 10mm. But be careful a lot of 10mm you find in stores are loaded down to 40 S&W levels. You want closer to 1300 fps.

>>33717539
You are aware they make a 50 bmg pistol now.

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>>33718962

>Punisher skull


Wow, scary. I now know that you mean business and you're probably a manlet.

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>>33716627
Just guy this OP,I CC it in my wheelchair.

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>>33719023
shitposting and misspell a word
fucking kill me already

>>33719011
I personally can't stand it, but I sure sell the shit out of it. Make a good demo piece.

>>33718962
autist opinions not welcomed though

>>33719045
>makes*
I sincerely apologize.

>>33716627
Car doors? 25mm, .44 magnum? Kind of out of the realm of pistols.

For windshields I'd say 10mm.

>>33716652
FPBP
Seriously every thread no matter the topic, 25mm.

>>33719563
>car doors
>out of the realm of pistols

u fukin havin a laff?

>>33716971
And the Air Marshall...

Wait, what?

>>33716807
>>33716971

Tree Fiddy Shiggy Diggy and 10 mammiliter are the top picks. The NCHP still uses it but switched to P226's after the M&Ps cracked.

>>33719023
>>33719039
You misspelled a word. You deserve that wheelchair.

>>33718697
.40 is superior in that it deflects less from passing through auto glass. Both are still inferior to 10mm and .357 Sig is definitely inferior to 9x25mm Dillon.

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>there are people who still shoot .40S&W

>>33720448
10mm is wonderful but it's ultimately a fad waiting to catch fire, the future is bottlenecking and spitzerization of pistol cartridges and .355 SIG is part of that paradigm that I'd like to see developed. 10mm is an excellent cartridge but it's already behind the curve before it really got a second wind. 9x25mm Dillon is a cartridge I'd prefer to catch on over SIG but it hasn't so there's no use crying over it when it never really had non-competitors look at it.

>>33716707
That wasn't the question. And 10mm projectiles will blow apart FASTER than the milder cartridges if the bullet isn't constructed properly. In fact, slowing 10mm down is occasionally beneficial to the cartridges performance

>>33721555
>if the bullet isn't constructed properly
Great comparison. A cartridge with a properly constructed bullet and a cartridge with an improperly constructed bullet.

>>33720555
Holy shit. You're actually retarded.

>>33717194
>.40
>fuddlore
that word you keep using, it doesn't mean what you think it does

Quality bonded bullets of most common calibers.

>>33716852
>this
literally made for pen.

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7.62x25mm

For barrier penetration 10mm followed by .357 Sig and .40

9mm +p/+p+ punches far beyond its weight.

.45 ACP is pretty damn good at soft targets not so good at autoglass.

.380ACP can barely get sufficient penetration on naked two-legged varmints might as less barriers. .32ACP is unironically better.

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>>33716627

7.62x25 tokarev will out-penetrate all of those.

>>33716675

This is objectively correct

>>33718119
this

>>33716627
>Which caliber is best suited for barrier penetration (I'm thinking windshield, car doors…)?

.50 BMG

>>33723319
you're looking for engine block penetration

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>Literally made for shooting through car doors

Truth be told there are many better options. 25mm comes to mind

>>33717060
Any proof otherwise? 10mm is literally the same round, in magnum form.

>>33723536
obviously I was making fun of that claim in the post i replied to, of course it dosent.

>>33721733
That really what it boils down to. The 135s suck dick in 10mm, but the 165+ is great. If that 135 was a bronze solid still getting over 1400fps you could puncture George Clooney's ego, but it's not.

Flat nosed FMJ/TMJ works fine for barriers, just kinda forgets to stop in humans

>>33716627
Of those? Probably 10mm.

Duh.

120mm APFSDS

>>33716695

holy shit he's autistic

>>33717005
>>33722919
>>33723262
Fuck you

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Is her anything wrong with mag rounds that no one carries a gun that can fire them? For instance, what's to stop someone from CC-ing pic related? Snub nose .44 magnum. That should have some punching power and then some.

>>33722976
Bullshit. .45 has less deflection than 9mm or .40 through auto glass. Get fucked. Smaller the bullet, the worse it is through intermediate barriers.

>>33718440
accurate

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>>33717248
WRONG

>>33724322
when you want to penetrate something, you want more velocity. when you want more velocity, you want a longer barrel. a snubnose revolver is about the lowest velocity you can get from a .44 magnum; some .357 magnum revolvers are subsonic with standard loads (see: LCR 1.87", which is supersonic with maybe 2 or 3 specific types of ammo, of which critical defense is thankfully one)

10mm is a solid contender given it is literally designed to be ballistically similar to .357 out of a long barrel, 7.62x25 is slav magic

>>33724584
Source on .357snubby ballistics.

>>33724584
http://www.ballisticsbytheinch.com/

if you want info on a specific load, look up testing for it on google. i recall critical defense being about 25-50 FPS above sonic speed in a LCR

generally speaking though, with normal ammo, snubnose revolvers will provide piss-poor performance unless you are very careful with ammo choice, and getting a revolver that is only 1 to 2 inches longer will nearly double your muzzle energy

>>33724659
The problem for them with revolver ballistics is you need to add the cylinder length to the barrel length to get almost the correct measurement for it, they just cut down a barrel bit by bit and goes muzzle to breach face like on a rifle not how revolver barrels are measured.

>>33721776
>DIS HERE FAWTY GOT THA STOPPING POWER OF FAWTY FI AN THA CAPACITY O NINE
>Y U THANK THA PO-LEESE AND FBI USE IT? A-HYUCK!

Name any single argument for 40 s&w besides "i found some during 2012s ammo scare" that isn't based in myths and fuddlore.

>>33717248
40 s&w is the aborted fetus of 10mm. I don't much like either personally, but 10 still outclasses 40 by every measurable margin

>>33716627
FN 5.7 Maybe

Oh come on, how many times do we need to say it? The only confirmed helmet buster that can be owned by a civilian is the 7.62 Tok.

>>33724854
And like every rifle. And maybe 5.7, which'll go through most IIIa.

>>33724806
The only difference between shit tier .40 and top tier 10mm is two inches of penetration and a dollar a round.

>>33716995
Anything after this is 40 dags trying to debate their dead calibers performance against what was superior in the first place.

>But the bullets don't preform right under stress

Use a different bullet or loading, 10 mm can be loaded down to trash tier 40 levels and up around or exceeding in some cases 357 mag. The versatility in projectile types, weights, and velocities are enough to outweigh any and all 40 arguements. In affect if you're arguing for 40 you should be using a loaded down 10 mm for more effect rather than loading 40 beyond capacity and making a .40 caliber grenade.

>>33716627
120mm APERS.

>>33716700
That's not 9x39 bud bud. That's 12.7x54.

>>33724311
Why do you react that way?
7.62x25 is really good at penetrating things, that's truth.

>>33716627
.357 will out penetrate 9mm, .40 or .45. I don't know but I assume 10mm would beat out .357

>>33716675
>This is actually why a lot of LE agencies pick .40

That fad has passed a long time ago.
Everyone has since realized it has all of the setbacks of 10mm with none of its benefits, well, everyone except people already invested in .40 who will always find a way to rationalize the purchase.

>>33724806
You mean aside from .40 being super common and tested, having some great loads available and currently having dirt cheap guns all over the place. Or making a better /out/ cartridge and being the bare minimum for competition shooting.

You don't have to like it, but that doesn't stop it from being completely adequate and your distaste for it doesn't stop it from doing its job

>>33724854
You mean like 9mm, since one of the selling points was it's ability to punch a helmet at ranges beyond the .45s capability

>>33716627

10mm> 180+ grain 40>357 sig>45 roughly = 9mm> 380

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10mm. Hands down for semi. Extreme penetrator shells will pass thru 5 in bullet proof glass from g20

.40S&W is like being bisexual. You get best of both worlds but both sides seem to have an irrational hatred of you

>>33727762
>The versatility in projectile types, weights, and velocities are enough to outweigh any and all 40 arguements.

Except for the price, availability and variation of guns in the chambering and the price of ammo. And I'm a 10mm fag

>>33728223
.357 mag does not in any way shape or form out penetrate .40 SW. If you compare 158 .357 and 165 .40, when shot into 4X4 posts .40 always penetrates more.

>>33716627
https://www.youtube.com/watch?v=peSxf07p0gY
https://www.youtube.com/watch?v=kzCiqZJsT6k

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>>33720078
>Tree Fiddy Shiggy Diggy

>>33728984
Ah, yes the lightest weight 357 on the market against middle of the road (and probably +p+) .40 on the market, this is truly and apples to apple comparison

>>33728990
115 9mm (lightest slug around) against 180 grain .40, which as seen above is one of the heavier loadings, truly a dissertation in comparisons, great job you too for picking some of the least biased videos around.

>>33727651
>a dollar a round
>10mm
You mean actual defensive rounds right? Because you can literally buy a fmj brick of 50 by Sig for $27-30, and they're loaded a tad hot for plinking pleasure.

>>33716627
From this picture, 10mm.

>>33718579
>When you sandwich up to 6" of 5000psi concrete between 1/2" sheets of tool steel to coccoon your homemade tank in crude spaced laminate armor that could defeat anything this side of an APFSDS round, hiding your cameras behind 3" lexan blocks that could stop .50bmg rounds.

Why is Marvin Heemeyer NOT the patron saint of /k/?

We should make Killdozer Day into a board holiday.

>>33716652
Like a proper gentleman

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>>33716627

This in particular. This shit can kill bears, and 300lb negro football players.

Also fire it from a 10mm Glock (20/29/40).

Its been discovered the unique combination of having a square firing pin and an overbuilt chamber (by .40 standards) makes it ultra reliable and you'll never get the failures associated with traditional .40 glocks.

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3 trillion metres per second

>>33716627
.22lr

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>>33724178
> puncturing george clooney's ego

>>33722919
>>33723262
>>33728171

russian armor piercing magic

> people talk about how much flesh penetration a pistol round has
> since the 1930s this round has had upwards of 14 inches of body penetration
> fmj will even go through a level II vest

>>33729182
this must be some kind of landmine

>>33729182
What exactly am I looking at?

40mm shell necked down to 5.56mm or 7.62mm?

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>>33729248
>>33729251

.50 bmg machined down and .17 stuck in

>>33729060
Is that irony?
https://www.youtube.com/watch?v=j2lwNjafHS8