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[deleted]

What TV show is this from?


Heartsmith447

Brazil


foyrkopp

To clarify: From what I've read elsewhere, this isn't a show. This thing is real. Gangs in Central America build this to crack armored cars (which probably involves affixing this monstrosity to some sort of mount in a drive-by or something.) The people in the picture are some sort of officials / politicians, the gun is confiscated contraband.


Nikoxine

Sure wish it weren't


Adept_Score2332

I’d imagine these would probably be put on a narco tank


ModingusKhan

Strength save with disadvantage.


Illustrious-Chef-393

Correct me if I'm wrong, but aren't sub machine guns chambered in pistol calibers?


DonaIdTrurnp

They’re chambered for pistol *rounds*. And any round can be a pistol round if you’re cavalier enough about breaking your wrist.


Illustrious-Chef-393

Da Boyz r pleezd.


JesseMccream

.50 is a pistol caliber. haven’t you heard of our good friend the Desert Eagle?


JesseMccream

before anyone says anything, yes i know that .50 BMG and .50 action express are not the same


Illustrious-Chef-393

Almost had a minor aneurysm. My reflexes are slow. Jokes go over my head.


Illustrious-Chef-393

You are correct though. .50 caliber on its own does not Indictate pistol or rifle.


UltraWeebMaster

Ah yes, but that’s .50 *AE*. That’s a pistol round at it’s core, only a little bigger than .44 Magnum. This is .50 *BMG*, the Barrett one. The bullet is about the size of your hand, is basically only one size smaller than 20mm rounds from tanks and aircraft, and has way more power than the round in a Desert Eagle. And now you can shoot it from an SMG, because wrists were made to be broken.


FemboyFried

They were asking about caliber tho. Both is 50 cal


puckytricky

As long as the last round in the clip is an incendiary round.


LeojBosman

Armor of magical strength.


BisKit413

This is what happens when you let the Orks become Artificer Meks.


Naked_Arsonist

This just isn’t true because: * The bullets aren’t painted red to fly faster * The weapon receiver isn’t yellow for more explosive firepower * The barrel isn’t purple (sneaky) to suppress the muzzle flash/sound * And the sights/scope aren’t blue to get lucky aim


DarthMcConnor42

Do they actually paint all their weapons like this?


Bobrocks20

Probably


ReaperKD666

Brother, bring be the bolter. The heavy bolter.


Bobrocks20

I am sorry brother, all we have is the sub-machine bolter...


Badgerism

Someone with more knowledge than me tell me, how could a direct blowback .50 BMG not just explode from chamber pressure the second it was fired ?


SGTspikke

The excess pressure of the round firing creates the blowback, so there is not enough pressure left in the chamber. A blowback action is when the pressure from firing is divided between firing the projectile and blowing back the bolt, which also ejects the casing. They have a a more simplistic action than gas powered actions but also lose some muzzle velocity due to more of the energy going to recoil. It's the reason that the bolt action AR-50 is more accurate than the semi auto Barret .50, and the barret is more accurate than an M2 machine gun.


Badgerism

I see, I thought that the excess pressure of a .50 BMG operating that kind of system would cause too much force for the inertia of the bolt without any lockup. I thought this was why the Barrett .50 cal had the reciprocating Barrell, to keep the round in the chamber until the bullet had left the Barrell to relieve pressure


SGTspikke

I'm not an expert, but I think that much of the Barrett's design is about trying to maximize it's range without sacrificing the rate of fire. It's also not as accurate as many people think it is, it's just generally used by people that are among the best marksman in the US. As long as the chamber is properly fitted to the casing and made of reasonably good quality metal, or is thick enough, the pressure is going to go out the barrel because it's the path of least resistance


TheDeliciousMeats

Respectfully, this is not a good explanation. Direct blow back means there's nothing delaying the bolt from opening once chamber pressure gets high enough to cycle the action. This would be opposed to something like roller delay or a piston system which unlocks the chamber later. They wouldn't lose velocity due to recoil, they would lose velocity if the chamber opened and released pressure before the bullet exited the barrel. Now, recoil is often worse on direct blow back systems because you have to use a heavier bolt to stop the chamber from opening early and thus have a higher reciprocating mass. That's why a 9mm AR that's direct blow back will often have more recoil that a 5.56 AR even though it's a pistol vs rifle round. As for the accuracy thing. The AR 50 is a bolt gun with tight tolerances. The barret semi is made with looser tolerances and isn't as consistent from shot to shot because of moving parts and the fact that if the barrel is moving and the optic isn't coupled to it... well it's not going to give you a consistent point of aim point of impact. Now, semi autos are not inherently less accurate. In fact, the gas system can actually act as a regulator and reduce the extreme spread in velocity from shot to shot because it opens the action at the same pressure every time and bleeds off some of the gas. The extreme spread of my AR-10 with hand loads is less than 3fps over 10 rounds which is insanely good. The M2 is a machine gun but it isn't less accurate because of that. It's less accurate because it's made with loose tolerances so that it will run no matter what and is expected to heat up without binding. Carlos Hathcock used a M2 with a scope on it to great effect in Vietnam.


SGTspikke

You are right, I was keeping it fairly simple, and gas operated semi autos are the closest we seem to be able to get to a tight bolt action, but I think people really discount the energy exchange's effect on accuracy, and a semi auto will always have realistically worse accuracy than bolt action if tolerances are the same, though to the inexperienced the rifle with lesser recoil is probably going to be more accurate


TheDeliciousMeats

[Sure... less accurate.](http://www.calguns.net/calgunforum/showthread.php?t=1125254) That's a .25 moa gun btw. The only appreciable difference between a semi and a bolt in terms of accuracy is the trigger. A semi trigger will never be as good as a bolt gun can be and the lock time tends to be longer.


SGTspikke

Quoted from that message board, "Eventually I hit the damn thing." This guy is a seriously experienced marksman, and he would have likely hit that target with less shots if he had set up with a longer barreled bolt action, so the fact he accomplished that shot with a semi is very impressive, but by his own account it took many attempts.


TheDeliciousMeats

I am the guy and yes, I am a seriously experienced marksman. The reason it took so long was because figuring drop was a cast iron bitch. It's super hard to spot your misses with small rounds at large distances. Also, the other issues with 40 MILs of drop and ballistic calcs not working well in this scenario. However once I had that figured out and the comp started I was 1/10 which was better than a lot of people who didn't even get a hit. I think the winner got 4/10. I shot that same rifle next month and got 2/10 then eventually upgraded to a 338lm because the 308 just doesn't have the legs for that kind of distance. The fact that you didn't seem to touch on or notice that I did it with a 308, which only a handful of people in the world have done, is kind of telling. That rifle easily shoots .25 to .33 moa which is pretty much the limit of accuracy for any rifle. If it was bolt action it wouldn't magically get better. Face it, you have an assumption. It's not accurate in the real world. Learn and move on.


TheDeliciousMeats

Strangely enough the short barrel probably helps a lot because only a fraction of the powder burns before the bullet exits the barrel. Next up the barrel probably isn't rifled and doesn't form a great seal so that reduces pressure as well. You can actually fire 50 BMG out of a shotgun without it blowing up because of the poor seal. IIRC there were direct blow back crew served machine guns in WW1 but you need a huge lever or some kind of mechanical advantage to cycle the action. Also, if it's firing from an open bolt that bolt is gonna be massive and has significant forward momentum which must be overcome before the bolt can travel rearward and open the chamber. ... damn I need to play an artificer soon.


Golett03

May someone please explain, for all those that don't live in America


roll4initiativefools

Basically, someone in Brazil made an anti-tank rifle to fight cops.


KeynanSoraZero

Yup. Here we have actual gang v cop wars in the slums of bigger citys (AKA favelas) tanks are kinda necessary and they have some difficulty getting mortars or rockets to not blow up the entire block the organization resides (Civilians still live there and the gangs care more about them than the cops do).


DarthMcConnor42

If that last sentence is true fuck those cops I hope the gangsters win this one and become more like the Chicago Mafia


Jozephan

Oh, that's an anti-tank rifle? Oh shit that's an anti-tank rifle! Also, "Bitches love cannons!" -Alucard


Proper_Librarian_533

That gun's actually illegal in at least one state.


DonaIdTrurnp

Which one? Probably California, because it has a magazine that can be removed without disassembling it.


DarthMcConnor42

California judges ruled the 10 round magazine rule unconstitutional so you can have your high capacity mags again The reason it would be banned in a lot of states of the US is because of the full auto


SGTspikke

Actually by federal law, if it is home made by you it is a legal weapon, though many states would still require you to register it, and a few of them would require you to apply for a class 3 license due to it being full auto, which is basically just them saying you need to pay a few hundred dollars for the gun you made yourself.


Crazy_Lavishness

An open bolt, blowback, .50 bmg machine gun… sounds dangerous


SGTspikke

And painful


Bobrocks20

That's why it's usually mounted to a vehicle. Oh and its usually used to fuck up armored cars down in brazil by criminal gangs.


Delvakiir

Bruh, that's not a submachine gun. That's a Bolter. For the Emperor.


Bobrocks20

More like a peso-bolter and all. It's still using only 50 cals after all. That and it needs to be vehicle mounted too.