83491d No.679020 [View All]
Title says it all, post your wild, wacky, and wonderful boomsticks that some crazed machinist dreamed up in his garage and somehow made without killing himself.
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69f7dc No.684452
>>684446
isn't 5.7 essentially a scaled-down straight-walled .223 that comes in armor piercing by default (as defined by the manufacturer)?
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946b91 No.684461
>>684452
it's a pretty light round though, about half the weight of the .223 you're comparing it to. Even if it flew perfectly through the softest tissue in a human body it's going to lose a hell of a lot of energy after the first guy. You might get 2 through and throughs, but after that it would probably fail to penetrate a (perfectly ordinary) jacket. If you want a round that you can fire into a crowd and bank on killing 5+ guys per shot then you'd probably want a .50 or something larger, which probably wouldn't work for something your state security can carry all day long. Having said that though …
>Crowd of angry protestor storming government offices
>State Security troops lined up at the top of the steps leading up to the front door.
>Each one carrying a cut down 20mm auto-cannon
>60 men mag dump 25 rounds each at ~1000 rpm (assume that there's some kind of space magic recoil-compensator built in to the gun)
>When the dust clears I don't imagine there'd be all that much left at the bottom of the stairs
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f283f8 No.684463
>>684452
No. It's dimensionally similar to .22 Winchester Magnum, has less than twice as much energy (which is hardly much at all), and the standard loading is a ballistic tip bullet which has minimal penetration of soft body armour (2A and 3A) only because it's a small caliber, spitzer round going fast.
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175b3f No.684472
>>684445
5.7 has ridiculously poor terminal performance. Every single US LEO agency that bought them dropped them after the very first officer involved shooting because they quickly found out 1-3 expanding .223 or 9x19 is a lot more fucking effective than taking upwards of 40 rounds to stop one assailant. If I remember right the Jacksonville PD incident involved two officers with P90 or PS90's and there were 70 confirmed shots on the subject between them, and even then it was a reserve officer that showed up with a 9x19 or .40s&w that finally stopped the threat.
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dbaa2e No.684475
>>684461
>>684452
>>684446
>>684445
>>684058
>>684463
No pistol round in usage can go through multiple humans bodies even at short range.
30.06 had over-penetration problem, .308 might kill two people, enhanced penetration rounds (M855 and subsequent) definitely does over-penetrate (M193 doesn't), 7.62 and 5.45 (except enhanced penetration rounds) also won't go through one people and have enough velocity to still be lethal.
5.7 is designed to be "the same" as 5.56 but for pistols and SMGs (so with an effective distance of 200 to 300m), a lighter recoil allowing for accurate full-auto (especially in the heavy FN-90 which is intentionally weighted) and a bigger capacity. Due to it's profile it is capable to defeat the lightest type of body armor (like 7.62TT) but it's entirely a consequence of all the other things rather than an armor piercing round (else it would be made of steel or tungsten or something).
A hot 9mm FMJ will also go through soft body armor too when shot out of say, a MP5.
5.7 is designed for volume of fire and P-90 is the platform 100% designed with this in mind originally for commandos to replace aging European MP5/PM-12, etc… with compact maneuverable CQC weapons to go against terrorists/soldiers armed with various AR and possibly MGs, but always at short range, with the large capacity and low recoil giving you greater suppression capabilities in a full "military" firefight than the enemy AR would.
I can't help but raise an eyebrow when that weapon is basically only used for leadership protection that use such a weapon when their realistic scenario is lone gunmen and angry mob.
Volume of fire + angry mob sounds very north korean indeed.
>>684472
Well yeah it was never meant for regular LEO, it's meant for people that:
1. Know how to hit vitals
2. Are at risk to find themselves in an actual standoff were covering and suppressing fire is on the menu.
And PS-90 is the most retarded thing ever made, thank you US boomers.
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642c01 No.684479
>>684475
>Due to it's profile it is capable to defeat the lightest type of body armor (like 7.62TT) but it's entirely a consequence of all the other things rather than an armor piercing round (else it would be made of steel or tungsten or something).
SS190 has a hardened steel penetrator and is designed to penetrate vests up to IIIA.
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175b3f No.684507
>>684475
>Well yeah it was never meant for regular LEO, it's meant for people that:
1. Know how to hit vitals
2. Are at risk to find themselves in an actual standoff were covering and suppressing fire is on the menu.
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dbaa2e No.684569
>>684507
https://archive.is/QzGic
NYPD still think carhartt jackets are bulletproof or somehow their Speer gold dot don't have powder in it.
Not that it's them that can't hit the broadside of a barn.
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175b3f No.684578
>>684569
Never claimed the NYPD could shoot, I just find it hilarious you've bought into the hype these types of guns were designed for super secret squirrel delta cag ranger types when the RFP was for a weapon that untrained POGs could use to have a slightly better chance against soviet patrols.
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642c01 No.684584
>>684578
He never said any of that, if you can meet basic military marksmanship standards (which is a requirement for any position that's issued a gun) then you can use a P90 effectively. Or at least that was the case in the 90s, who knows how fucked things are today.
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e34b67 No.684587
>>684569
What is the context of this video, any info about it? Never heard of this situation before.
I guess it's because the guy is white
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7544ff No.684590
>>684587
Dumb commiefornian tries to steal cops gun, manages to get a magazine before getting mag dumped.
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779cd0 No.684602
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df9f9d No.684661
>>684602
That's none of your business.
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84e266 No.684676
>>682917
>>682983
It seems stupid until you notice that one fucker in the back who's just about invisible
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a4c120 No.684684
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f6ac72 No.684837
>>679030
>>679044
From the live action film, GI JOE: Retaliation
Character roadblock (Dwayne Johnson) has a modular weapon handle that accepts Knife, Gun, and baton attachments.
To what advantage? None, except to Tacti-cool with a pistol grip knife.
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229d97 No.684838
>>684676
>Be basically invisible
>By standing behind opaque concealment
Well, yeah, he'd need to be wearing a spot light as a hat to stand out in that pic, from that angle, at that particular moment.
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b74b60 No.688594
Unrelated to the thread, but it's a working WW2 Luger and a 2nd magazine worth 1100$? The serial numbers don't match since it was reassembled, but my autism tells me that it makes it more likely that jews/commies were executed with it.
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fce06a No.688598
>>679031
So somewhere a weapon engineer saw the hand phasers from Star Trek TNG and thought to himself "Yes. This is an elegant and workable design."
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b17f16 No.688623
Personal favorite of mine. IIRC the front trigger went full Doom 2 and shot all barrels at once.
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875283 No.688971
>>679030
Stay classy faggot (pic related).
Bonus points for who can tell why it's a frog gun.
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28fa99 No.689011
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5ffbeb No.689042
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0cd496 No.689050
>>688971
I don't know what you're talking about, that's obviously a Swiss Army pistol.
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7eb26f No.689052
>>688971
It's a mini-Chassepot ain't it?
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f115da No.689074
"The Gyrojet is a family of unique firearms developed in the 1960s named for the method of gyroscopically stabilizing its projectiles. Rather than inert bullets, Gyrojets fire small rockets called Microjets which have little recoil and do not require a heavy barrel or chamber to resist the pressure of the combustion gases. Velocity on leaving the tube was very low, but increased to around 1,250 feet per second (380 m/s) at 30 feet (9.1 m). The result is a very lightweight weapon."
>https://en.wikipedia.org/wiki/Gyrojet
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f115da No.689075
"Captive piston ammunition is a unique, special-purpose cartridge that is designed to be intrinsically quiet as compared to conventional ammunition. Essentially, the SP-4 silent cartridge consists of a reinforced steel cartridge case containing a small powder charge enclosed in a cup-like piston in the rear of the case. This piston rests against the base of the projectile; a cylindrical bullet made of mild steel and fitted with a brass driving band at the front. The SP-4 cartridge was adopted by the Soviet KGB and Spetsnaz units in 1983 along with the PSS host pistol. Many prior designs, such as the SP-3 and PZAM silent cartridges, utilized 2-part (or 2-stage) piston that extended beyond the end of the cartridge case. While this permitted greater acceleration of the projectile, it also was incompatible with cycling in a semiautomatic host weapon. These older silent cartridges from the late 1970s and early 1980s utilized the standard 7.62mm M43 projectile loaded in the AK 7.62×39 rifle cartridge.
When fired, the primer ignites the powder charge, and the rapidly expanding gases drive the piston forward at a high acceleration. The piston, in return, drives the projectile. When the driving piston reaches a shoulder at the end of the case, the piston is somewhat violently stopped by a shoulder on the front of the cartridge case.The high pressure propelling gases are contained (and trapped) in the spent cartridge and gradually leak out over a period of several weeks. Because the propelling gases are not released into the atmosphere, there is very little sound generated. In the United States, each individual round is considered to be a silencer subject to the registration/transfer requirements of the National Firearms Act in its various incarnations."
> http://www.sadefensejournal.com/wp/beyond-quiet-the-russian-pss-captive-piston-pistol/
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5c36d7 No.689085
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16ebef No.689086
YouTube embed. Click thumbnail to play.
>>689075
>>689085
Those russians are some ingenious fucks
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77f212 No.689210
>>679303
>linking forgotten weapons on /k/
Careful anon, lots of people here are very ass-mad Ian gets to fondle their raifus.
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77f212 No.689211
>>683958
>he hasn't heard of the PDW program
>he thinks he's smart because he noticed secret service use concealable firearms
Quick, nobody tell him about suitcase guns. It'll fry his niggrified frog mind.
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77f212 No.689212
>>688971
>mon diu, put le wine opener on le pistol
>le bolt action pistol
>with le bayonette
Jesus Christ on high, may the French never fucking change!
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0cd496 No.689215
>>689210
>>689211
>>689212
>>>/reddit/
>>>/gaschamber/
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5a1846 No.689221
>>689215
What else did you expect from the monkeydonian
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380209 No.689244
Ooof! That's gotta hurt 😖
Here, let me help you bump up the board.
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380209 No.689245
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8facc8 No.689253
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f38164 No.689424
>>682708
It's not. You can actually see it on the model of the shells, it says 8 gauge.
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f38164 No.689425
>>682464
I unironicly want something like that.
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0fb29d No.689538
>>689086
>>689075
>>689085
>>Piston, reaches into barrel. Working like a rammer.
Errm, anons, seriously… how is the piston supposed not to fuck up the barrel / rifling after a while? At least after the 'chamber' itself, or is it smooth-bore only?
I do understand they may have used weaker material for the projectiles - but still, what about the pistons, the barrels… And the gas pressure is contained, held back, if I got that right…
Is there some trusted data on reliablility of these bangers, or is it more prototype level and limited quantity manufaturing and development they did? Like proof-of-concept stuff I mean, sorta 'yes, we can' bullshitting.
Just saying, I've seen pics of barrels bent to shoot around corners, so… some things aren't impossible to achieve, but are they feasible?
Dunno, got me thinking, I'm curious about the practicality I guess. Somehow reminds me a bit of ASP custom purpose handguns designed by a smith named Paris Theodore… These russkie crackers also seem special purpose but not really of value to anything else than hits and one-time use ops.
Can a Strelok give some translation of that one video - what are they saying exactly?
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ed293c No.689540
░░░░░░░░░░░░░░░░░░░░░ ░░░▄█▀█▄█▀█▄▄▄░░░░░░░ ░░█▒░░▀█▄▄░░░▀▀█░░░░░ ░█▒░░░░░▒░░░░▒▄░▀▀█▄░ ░█▒░░░░█▒░░▄▀░░░▒░░█░ ░█▒░░░█▒░░█▀▒░░█▀░░▀█ ░█▒░░░█▒░░█▒░░█▓░░░▓█ ▄▀█▓▓░█▒░▓█▓░░█▓░░▓▄█ █▒▒████▄▓▓█▓░░█▓░░▄█░ █▒▒░░░░░▀█▄▀░▄▀▓▄█▀░░ █▒▓▓▓█▀▀▄▀█▄▄▀▄▄▀░░░░ ░▀▄▄▄█▄▄▀░░░░░░░░░░░░
still here 'migos
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4d03a6 No.689541
>>689538
The piston one is the older model of cartridge, back when it was used in basically a derringer, the newer model (SP-4) contains the platform inside the case, so the shell can be extracted properly by the PSS.
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7d6a5f No.689547
>>679024
"I'm a freakin blur!"
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89ec5a No.689645
>>688623
Nah, that forward trigger was for the tear gas dispenser (seriously). That weapon was designed by the same guy who came up with the COP derringer and the saner Winchester Liberator. It used a rotary hammer system.
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443bbf No.689796
>>688971
I'm reminded of the drug dealer who brings his gun to a party to do some kind of trick and ends up waving it around at people and ruining everyones time.
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443bbf No.689797
>>689538
I thought everyone knew about this.
Basically the case is lengthened to stop the piston protruding into the barrel.
The issues were mainly related to power, the thickness of the casing has to be increased considerably to stop it deforming and jamming the action- as the case still has positive pressure after firing. The round also has to remain subsonic, so the overall energy on target I think was really low.
They were very nieche and were only made in limited numbers- but because of their unique utility were held onto by ex-soviet agencies and anyone else who got their hands on them before the fall of the USSR
Older models I believe had two O/U barrels but newer ones were magazine fed, however because of the niche application I imagine some operators preferred two reliable rounds in chamber in case of malfunction.
Newer models also had a telescoping piston that reduced overall case length.
I'm pretty sure post cold war everyone developed a version of these, what interest me more is the ones where a telescoping cartridge were hidden in an object, and if they ever developed specialty munitions
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7d41cf No.689804
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d7392e No.689813
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90c58b No.689820
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