How a PSS silent pistol works
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- เผยแพร่เมื่อ 4 มี.ค. 2017
- The PSS silent pistol or MSS "VUL" (or "Wool" in English) is the last completed weapon system resulting from the Soviet development of silent pistols operating on a sealed cartridge system. Two previous designs were considered unacceptable for use due to their limitation to two shots. Earlier systems included the MSP and SP-4M double barreled pistols. Developed around 1980, the PSS was first issued to KGB Spetsnaz in 1983. Intended for assassinations and reconnaissance, it is under production in the special weapons foundry at TsNIITochMash. PSS pistols are still in use by elite special forces units of many nations, as well as by some FSB, MVD.
en.wikipedia.org/wiki/PSS_sil...
PSS silent pistol full disassembly
• PSS silent pistol: ful...
Don't try to recreate what you see in this video, as this is gameplay. This video was created using the game World of Guns:
store.steampowered.com/app/262...
This game is also available on Google Play, App Store, Amazon and other platforms. - เกม
For those who are interested in the SP-4 cartridge only, here is info you might be interested in:
There is a piston in the cartridge that separates the projectile from the propelling charge. When the primer is struck, it ignites the propelling charge powder. The combustion then forces the piston forward through the cartridge pushing the projectile out of the neck using inertia. After the projectile is fired, the piston's interia continues to throw the piston forward into the neck of the cartridge. The piston has just enough energy to cram itself into the neck creating a very tight seal. This process prevents gas from expanding down the length of the barrel and escaping the muzzle. Since acoustic waves travel through said gas, if you contain the gas in the cartridge, you have very little sound. This does, however, negatively impact the performance of the round. Prevention of gas expansion might work well to reduce sound, but it also reduces velocity and muzzle energy. Effective range of this round is only about ~50m~ do to this limited gas expansion. Operation of this firearm was thus restricted to KGB Spetznaz for special operations and for assassinations in part of general spycraft only. There were other commonly undiscussed benefits to this design. Not only does the piston's ability to contain gas reduce sound, but also traps unburnt powder leaving less evidence for investigators to use in identifying the round, and later, the shooter. This action also prevents the release of gun shot residue from being found on the shooter's hands. Even with the very low velocity/muzzle energy, the projectile was a flat tip steel rod that would allegedly dump enough energy on impact to penetrate level II soft body armor. This is ideal for spies since their targets would usually be wearing such body armor. The only major flaw for this firearm, would be the action of extracting spent cartridges. It's not prefered to leave cartridges on the ground after an assassination XD. Exotic rounds like these are easily identified by investigators since they were only used in two firearms in the entire world; the PSS pistols and OTs-38 revolver. OTs-38 revolver was often the weapon of choice for operatives for obvious reasons...
good on you
OOOH! So it's the ammo that makes this a "silent" pistol without needing any suppressor system!
But also this cartridge was used in the nrs-2 knive, that can shoot.
epic comment
Thank you for the explanation. Very ingenious, and I have to wonder if a revolver with this ammunition would be the ideal weapon as it wouldn't eject the spent rounds.
Could you do an animation on how the ammunition works to reduce sound?
It works like a piston. The gases get trapped in the cartridge and expel it out.
I understand how it works. I would still like to see a working animation of it, if possible.
Not in this style it’s from a game
0
The PSS boasts compact dimensions and utilizes special noiseless ammunition, eliminating the need for a traditional silencer. Despite its effectiveness and popularity among elite units of the Russian armed forces and special law enforcement units, the PSS was never exported outside of the Soviet Union. However, it may still be in service with some former Soviet republics.
This is kinda pointless without the cartridge being x-ray. The silence comes from the shell, the gun is pretty standard.
Mac Smith I think it is particularly unique since it utilitizes a floating chamber which is very unique for a recoil operated pistol.
The cutaway view shows the inside of the cartridges too
0:12 (slow it down)
The Primer gets hit, ignites drives a load, above the load is a flat sealing piece, the gases flow around the sealing and push the projectile, in the moment the projectile has left the case, the seal is getting pushed against an inner neck where the projectile was sitting on, and seals the ignition-chamber inside the case between the chamber and the outgoing projectile, which has in the meantime archieved enough velocity to leave the barrel by itself.
As if you has a pipe in your hand, on the one end sticks a potato inside, the pipe has vacuum but the potato wont move, now you smack the potato with flat hand and the potato moves forward until your hand surface seals the end of the pipe where the potato was sitting.
Same thing, but without vacuum and inside a cartridge. Its a momentum thing.
Oh yeeehh, totally standard... Yeah that's it, every pistol has a moving chamber, right?
For those who were initially confused, the bullets are essential to the operation of this pistol, and this video does a poor job showing it. From 0:02 to 0:18 you can see the proprietary ammunition and how it fires the projectile with any gasses escaping and thus, no sound
amazing cartridge.
A part of the video does explain how the cartridge works at 0:16 but you have to play it at a low speed (0.5-0.25)
Yeah, literally three frames. Thanks.
Omg. That thing shoots literal cylinders!
I wish we could experiment this by reducing the amount of powder yet pushing the projectile inwards ... just thinking!
Congrats on making a "how it works" video that doesn't actually explain how it (the sound suppression) works.
Do one about the OTs-38 Stechkin. Is the same but with a revolver design
Yeah but what about the cartridge internals?
Do the bullets go all the way back to the piston (in the casing), or is there a gap there between the piston and the bullet?
What I find interesting about this pistol is the fact that the rounds themselves are make the pistol silent not the pistol itself.
What if spetsnaz had an offensive model? Like the mk23?
The contained pistol cartridge was patented in US in early 1900's. Smith & Wesson built some revolvers with this concept in 1960's, but idea never caught on anywhere but USSR.
Which component is responsible for the low sound signature of this platform?
The cartridge.
Самият патрон е безшумен .
There is a piston in the cartridge that separates the projectile from the propelling charge. When the primer is struck, it ignites the propelling charge powder. The combustion then forces the piston forward through the cartridge pushing the projectile out of the neck using inertia. After the projectile is fired, the piston's interia continues to throw the piston forward into the neck of the cartridge. The piston has just enough energy to cram itself into the neck creating a very tight seal. This process prevents gas from expanding down the length of the barrel and escaping the muzzle. Since acoustic waves travel through said gas, if you contain the gas in the cartridge, you have very little sound. This does, however, negatively impact the performance of the round. Prevention of gas expansion might work well to reduce sound, but it also reduces velocity and muzzle energy. Effective range of this round is only about ~50m~ do to this limited gas expansion. Operation of this firearm was thus restricted to KGB Spetznaz for special operations and for assassinations in part of general spycraft only. There were other commonly undiscussed benefits to this design. Not only does the piston's ability to contain gas reduce sound, but also traps unburnt powder leaving less evidence for investigators to use in identifying the round, and later, the shooter. This action also prevents the release of gun shot residue from being found on the shooter's hands. Even with the very low velocity/muzzle energy, the projectile was a flat tip steel rod that would allegedly dump enough energy on impact to penetrate level II soft body armor. This is ideal for spies since their targets would usually be wearing souch body armor. The only major flaw for this firearm, would be the action of extracting spent cartridges. It's not prefered to leave cartridges on the ground after an assassination XD. Exotic rounds like these are easily identified by investigators since they were only used in two firearms in the entire world; the PSS pistols and OTs-38 revolver. OTs-38 revolver was often the weapon of choice for operatives for obvious reasons...
What if a gun simply used compressed gas and had a projectile magazine feeding a chamber with no opening between a ram and the barrel? Could have a secondary chamber to load super charged canisters that would resupply gas pressure....For clandestine would also offer benefit of getting past sniffers and also problem of GSR Could even have point-blank version that fires balls leaving now conventional ballistics as far as rifling marks normally discoverable on conventional missile shaped projectiles.
I need this With Mississippi queen and the caption “what was sound”? “Probably nothing” “ok”
Still doesn't show how the round itself works. That's what we want to see!
what kind of cartridge?? is this.
SP-4 7.62x42 captive piston cartridge
...so it's not really the gun that's silenced, but it's the bullets?
Which app is this
World of guns
Its on steam, Google play, and ios
Got this app last week and I love it
10/10
Btw no ads also and i never spent a penny on anything
@ Rajesh Yadav
@@-Agent_47_ but you need pay credits and experience points for most guns
@@user-ld3hc7mr5i you just gotta work your way though each gun and complete challenges and it gives you cred and experience.
I still play this "game" to see how some firearms I have interest in work. I easily have 20+ guns unlocked and the only reason I don't have more is because I already have the models I wanted.
And if someone can comment/reply to me in a other 2 years to make sure I'm alive? Then every 5 years after that. If I don't reply back, just assume the worst happened to me
@@user-ld3hc7mr5i Well they do need to make money... The amount of work that went into this deserves to be rewarded!
@@thermionicemission6355 lol
I like the mechanism of action, floating chamber fixed barrel. Invented by Carbine Williams in America
It's the same physically, but the concept is completely the opposite. In this gun there is no gas coming out, so it's only using Newton's 3rd law, if it just had normal blow-back styled operation the neck would move from the chamber too quick and the captive piston would shoot out too, as the case walls cannot possibly handle that level of pressure.
In the Williams guns the chamber was the piston, there was also a 1911 .22 conversion which did the same to increase the blow-back force to cycle the action with just the .22LR for military training.
It's pretty interesting, two completely opposite systems, yet mechanically the actions are the same essentially.
You show everything except for what makes this pistol unique. What's the point if all you are showing are the aspects which work just like every other semiautomatic, detachable magazine pistol?
The part that is actually interesting is the cartridge internals from the moment the firing pin hits the primer until the bullet fully leaves the cartridge, yet your animations cover that in the space of less than one frame interval (as you don't even show the projectile within the barrel, it just completely disappears out of the frame).
What is this Russian black magic
very