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/k/ - Weapons

Salt raifus and raifu accessories

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There's no discharge in the war!

File: 414b394553d75cd⋯.png (3.61 MB, 1425x1842, 475:614, Slavshit Tactics.png)

c9df93  No.480825[Reply]

Let's have a PDF thread going. Going to dump some stuff I have.


437 posts and 218 image replies omitted. Click reply to view.

fb72ed  No.632573


>how the fuck do 40michaelmeter arming mechanisms work?

All I know is the fuze is armed by the spin the barrel imparts.

File: 40a09c4ee11e513⋯.gif (1013.3 KB, 320x291, 320:291, 40a09c4ee11e51314f631ac202….gif)

394405  No.542033[Reply]

The limit of banners has been increased to 300, so please post any new /k/ themed banners in this thread as long as they do not exceed 500 KB, and are 300 pixels wide and 100 pixels tall.


192 posts and 193 image replies omitted. Click reply to view.
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c011d0  No.623135


>zero trigger discipline

>zero basic firearms safety

Fuck 'em. They're thots.

File: 1459347920719.png (451.08 KB, 800x547, 800:547, 1431536462977-2.png)

91d774  No.339941[Reply]

Welcome to /k/

If you're looking for gun history, terms, the basics to gun laws, or what gun you should buy next, go here: http://amagicalplace.wikia.com/wiki/Sticky#

Other board of interest:


Rules: http://oxwugzccvk3dk6tj.onion/k/rules.html

Check the sticky before posting.

All random questions about guns go in the QTDDTOT thread.

Please check the Catalog before posting and avoid duplicate threads.

Tripfags need not apply; see rule 7

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4bd089  No.626302

Could someone please clean up the paranormal thread please? It's been completely derailed with blog posting about having children. I know /k/ doesn't like much moderation but it's completely off the rails. It's a niche thread and a fun one to read, there's other places to discuss having kids.

File: bcfe0a3eea7e36d⋯.jpg (638.02 KB, 640x901, 640:901, S.T.A.L.K.E.R. Shadow of C….jpg)

File: 986e5975d6c472a⋯.jpg (124.59 KB, 300x410, 30:41, Red Orchestra 1 Ostfront 4….jpg)

File: d14de4810c6bd6c⋯.jpg (79.53 KB, 477x674, 477:674, Rainbow Six Siege.jpg)

File: 85a046b6edc5079⋯.jpg (131.17 KB, 600x847, 600:847, Wargame Red Dragon.jpg)

File: 39ab2a81396fe56⋯.jpg (1.11 MB, 1330x1650, 133:165, Fallout New Vegas.jpg)

1dd1c3  No.481251[Reply]

So we don't have multiple threads made /v/irgins asking what guns to put in their indie game or multiple threads about the HECU Marines from Half-Life let's have a cyclical thread for contained vidya discussion.

495 posts and 159 image replies omitted. Click reply to view.

fd8625  No.632992

YouTube embed. Click thumbnail to play.

>T-There was no compromise!

Now BSG are censoring people criticizing the game, what a fucking joke.


8d86e3  No.633022

File: 1882e3e40dca2f3⋯.jpg (56.97 KB, 184x184, 1:1, wh40k ig christmas.jpg)


Last phase of the Battle of Shiloh was a bit of a fucking mess. Unionniggers weren't dying fast enough to gunfire, despite being surrounded from three sides so I did what any reasonable man would and ordered everyone to charge, while ordering second half of the army to get into positions that the troops engaged in melee had occupied. So, if the unionniggers weren't dying fast enough to gunfire, then maybe they would die bit faster to gunfire and bayonets. The only regret I had was that I accidentally ordered one of my veteran brigades into that melee. Sure, timer ran to zero, but apparently I had enough people alive in the murderzone so that it counted as a victory.

ddadc3  No.633027


Well, I had a bit easier because I sorta metagamed, basically, in the 2nd phase, I ignore Hornet's Nest and just march straight into Pittsburg and taking it.

So the last phase is just me defending Pittsburg against the coming unionniggers.

f120db  No.633051


>BSG showed off some 0.11 shit and leaked a few items

>reddit instantly goes back to sucking their dick

>people justifying the Eroktic video being DMCA'd as "it could've done irreparable damage to BSG's reputation"

I've seen a lot of pathetic shit in my life, but this, this is magical.

7ac411  No.633055


Just wait till you have to play CSA Chickamauga, that battle is a real shitshow. Braxton Bragg was a mistake.

File: a0b979d721e6fd5⋯.png (88.36 KB, 523x264, 523:264, d3ab840bb0ae7c5f69c01c1fa6….png)

File: a912659b1081338⋯.jpg (164.87 KB, 1000x667, 1000:667, Idw is easily one of the t….jpg)

File: 7b1c735534af30a⋯.png (399.06 KB, 1024x1024, 1:1, Idw_norm.png)

4e594b  No.628232[Reply]

I think I'm becoming obsessed with this gun. It had a fucking electronic device to adjust rate of fire. Yeah, it probably didn't work and sounds useless has hell, but I just can't get over it. It doesn't help that this bitch keeps popping up on my tablet.

46 posts and 31 image replies omitted. Click reply to view.

ef9721  No.632827

File: d8be606013848b9⋯.jpg (162.7 KB, 828x389, 828:389, thinking slayer.jpg)


>as long as you pull the trigger the electronic timer is ticking and releasing the hammer at set intervals

What if you just had the bolt locking complete the circuit instead of having to mess around with an electronic timer and hope it doesn't cause an out of battery discharge?

5633ee  No.632837

File: 618006a47caf1ef⋯.jpg (11.06 KB, 225x255, 15:17, 12b75a6f00ddd279bc6144ca5d….jpg)

>it has a 2000s paintball gun trigger

possibly hilarious

2ddf9d  No.633032


It's a blowback design, it doesn't have a locking bolt. You will need the timer anyway to control the rate of fire, might as well use it to do away with potentially unreliable physical switch which.

1aa378  No.633039


>4 inch barrel

>150m range

Niger wht?

>weighs as much as a AKS74U

Just buy a fucking spear you retard, brits can't make guns.

c97ccd  No.633054

File: f0af03f3673e58e⋯.jpg (441.52 KB, 721x1000, 721:1000, idw.jpg)


but there's a nice anime girl attached to it in a chinese cellphone game so I'm gonna like it anyways

File: 5250efbc22d40bc⋯.jpg (46.12 KB, 1024x819, 1024:819, magical.jpg)

0a024c  No.510496[Reply]

So, in the prepping general thread a new Zeemaps was created just for /8/k/pol/ (old one was cluttered as fuck). Tag yourselves with a codename and a secure email, get to networking.

Other options include joining state constitutional militias (PA State Militia is unironic and legit, look into yours or start your own).

Avoid any group that advocates 'first strike' or violence as it is likely a honeypot.

Also /meadhall/ isn't dead, yet. Though they are more likely /pol/ than /k/.

Nuggetfests are good to get to know your fellow /k/ommandos.

452 posts and 91 image replies omitted. Click reply to view.

884b6e  No.631412



What is actually going on in Paris?

Boche media is saying nothing and /pol/ thinks it's one hanging away from being a racewar.

521d78  No.632906


>recruiting people into a militia from airshit

youre either going to get murdered or severely disappointed.

937952  No.633016


Britain is in the same position as California in that politics and media are dominated by a major city occupied by foreign people and propped up by foreign money. Outside of that city most people hate them.

e548a3  No.633044

File: e8c9fa7173751fc⋯.png (3.68 MB, 1520x2040, 38:51, ClipboardImage.png)

I'm meeting up with two of you autists today. I'm a /b/tard and know how to guns, any advice?

Pic related: My loadout

35fb56  No.633053

File: 3ec47cc2acc6321⋯.jpg (256.27 KB, 640x400, 8:5, grzes rozpierdalator.jpg)


It just happens that I've spent over 10 years in asg and I'm sure I'm trained better than many soldiers

File: 7e59e5d82772048⋯.png (49.29 KB, 640x300, 32:15, 240de49a1e04626063ffc49052….png)

File: 4aea24d28d71d80⋯.jpg (37.13 KB, 800x224, 25:7, Tu-128-2.jpg)

File: 3f6e0f18f838ee3⋯.jpg (277.21 KB, 1008x756, 4:3, AirExpo_2014_-_Beluga_02_(….jpg)

02d2a8  No.627963[Reply]

Since "dogfighting" is dead, air to air missiles easily match-up fighters' turn radius and bigger is better since you can stuff more high-tec avionics countermeasures and trinkets, why don't fighter-developers orientate towards heavy class interceptors like the past Tu-28 and the proposed Tu-160P and B-1R for front line duty and modified airliners/strategic airlifters as missile-trucks for air-policing?

Imagine a B 747-8 with a practically limitless supply of AMRAAMs, Meteors and chaff/flares, yuge jammers self-defense packages of Air Force One and strategic bombers, laser active point-defense against at least heat-seeker missiles, an interception radar for each frequency and a FLIR on every side of the airframe, the ability to stay on air for half a day, as well as secondary AWACS, EW and tanker capabilities for support of conventional fighters escorts when traditional air-combat warranted. It would probably be also be far more cost-effective than trying to miniaturize all these features for fighter-sized aircraft as the current trend is.

Why is it not happening?

106 posts and 34 image replies omitted. Click reply to view.

43eed1  No.633041

Invidious embed. Click thumbnail to play.


Why is Ace Combat becoming more and more plausible with each passing day?

d9f3b0  No.633042


What's the upper size efficiency limit for turbofans?

People don't build larger engines than the PW4000 and the D-18T because they can't or because it would be retarded to?

c2db00  No.633043


GE9X, although materials science isn't quite there yet, GE thinks they can solve the problem by 2020.

Basically it's so big that if you made it from metals, and hung it from something, it would sag into an egg shape. That's why it's made of composite fibers, which are layered in a way as to prevent sagging.

c944dd  No.633045

File: ad8721f8995f36e⋯.jpg (245.17 KB, 1080x792, 15:11, ge90.jpg)


>getting shot at is the same as getting shot

I was just saying that expecting to get shot at is part of war. Sometimes the most effective method of achieving your goals involves getting shot at. That's why tanks are still around. Of course you want to keep those situations to a minimum but sometimes its necessary.


the future is getting me really really hard


>upper size efficiency limit


>he doesn't know about the ge90

picrel. In general, turbine efficiency scales up well with size, but almost always come into issues with heat buildup damaging the engine, whether its a wind turbine, steam turbine, or afterburning turbojet.


The composite engine parts are still just another way to cut weight. They could have made it out of metal, but the structure would be thicker and heavier than it is.

Composite turbine blades, however, are a great advancement that produced tougher and better cooling turbine blades.

d9f3b0  No.633052


>for the Boeing 777

>less than 3.5 meters diameter

So we have reached the upper limit of this tech, huh? Are there any theoretical suggestions for the replacement of the turbofan in the foreseeable future?

YouTube embed. Click thumbnail to play.

dc454d  No.628798[Reply]

Like it says on the tin, post high quality modern military propaganda. Starting with this kino piece right here. Even though I know it's propaganda it still has an effect on me. Unlike other branches of government, the military needs more zogbots to make sure it doesn't get weak and is easily overthrown. That's why it's all such high quality stuff their putting out.

They didn't put amateurs on this.

77 posts and 24 image replies omitted. Click reply to view.

229825  No.633017


Agreed. In my country, the useless pollies are actually trying to get the soldiers in jail for war crimes but of course it failed.

7f67b0  No.633018


There's nothing to get, big manly men with guns bad.

End of.

Goddamn each day the future looks goddamn darker.

48a049  No.633047

YouTube embed. Click thumbnail to play.

This is our latest ad, pretty fucking gay for the most part.

48a049  No.633048

YouTube embed. Click thumbnail to play.


This older one is definitely better.

5a1e47  No.633050

Do you guys remember the "die Rekruten" series the German army produces like two years ago?

They did three more series like that, one titled "Mali", "Fallschirmjäger" and the other "KSK".

Mali is about the German troops in Mali and basically follows a standard deployment down there.

Fallschirmjäger is about the training of paratroopers, while KSK is about the training of KSK troops.

While most of it is a little boring, some parts are really well made and accurately portray modern life in the army (bureaucracy, boredom and so on).

It's all this channel uploads: https://www.youtube.com/channel/UCZPAni75bkLnjGO8yhuJpdw

File: aa9e86067a643c2⋯.jpeg (103.13 KB, 800x600, 4:3, 48F18B58-E4AB-478E-A59A-C….jpeg)

41e274  No.546766[Reply]

Old thread will no longer bump back up to the first page, creating a new one.

Old thread >>530956

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7b73b7  No.633030

File: cd07f02fd58dfb4⋯.jpg (1014.97 KB, 2272x1704, 4:3, aks-74u_8_of_8[1].jpg)

What's that thing above the charging handle and in front of the rear sight on an aks-74u?

9f889f  No.633036

YouTube embed. Click thumbnail to play.

>MK6 helmets are useless against 9mm 155grain

03a242  No.633038


It's an overtravel stop, since the AKSU-74 has a hinged, not removable, top cover.

03a242  No.633040

File: 15de4c496d77078⋯.png (40.16 KB, 646x249, 646:249, brit explains uk events.PNG)


Ah, that wonderful British tradition of quality military-issue gear….

It goes hand-in-hand with everything else they have done since 1914…

e74287  No.633049


Depends on the kind of combat you are in. At longer ranges with low intensity you will have enough time to adjust and aim properly.

If the enemy is right on top of you, you use your gun instead of fiddling around with it.

File: 77bd371f5617d30⋯.png (15.8 KB, 688x453, 688:453, mag fed slam fire.png)

03b4a2  No.628499[Reply]

Hey /k/, I'm trying to brainstorm up a design for a mag fed slam-fire rifle. I'm stumped as to how I add a few mechanism while keeping it a slam fire weapon, but this is what I have so far. After I figure out how to implement all of the mechanism, I will make an accurate blueprint for both a rifle and pistol calibre.

Thoughts on what I have so far?

35 posts and 10 image replies omitted. Click reply to view.

7bf403  No.632337

File: 850c5913ad13803⋯.png (19.2 KB, 1080x464, 135:58, Mk. CCCCCCXXXXXXIIIIII 'Sa….png)

The perfect gun, if I do say so myself.

2d84df  No.632338


*infects you with tism*

6c9359  No.632354


This exists. It is called a blow forward firearm. Forgotten weapons has a good slow-mo video of the Schwarzlose 1908 demonstrating such a mechanism.

1328f7  No.632355


>no round in chamber

>barrel moves backwards

>picks up round from magazine

>locks in most rearward position


>barrel moves forwards

>round is extracted along the way

>round is ejected as barrel moves past magazine

>barrel moves backwards again

>picks up new round

It's literally the same process but with different moving parts. You could probably keep the extractor and ejector on the bolt as well. All you need to do is make sure that the barrel and new rounds from the magazine line up properly.

Bad news: this system is needlessly complicated. You are moving way more mass than necessary, you are moving it in the opposite direction of recoil and your barrel becomes a moving part making zero very hard to maintain.

4ac587  No.633046

File: 77f3b12f8b86840⋯.png (1.28 MB, 1200x738, 200:123, ClipboardImage.png)

45c35d  No.613053[Reply]

>A 2018 RAND report on health promotion and disease prevention has painted a grim picture of the military’s physical fitness and sleep standards.

>The study, featuring roughly 18,000 randomly selected participants across each of the service branches, showed that almost 66 percent of service members are considered to be either overweight or obese, based on the military’s use of body mass index as a measuring standard.

>While the number of overweight service members is a cause for concern, it correlates with the obesity epidemic plaguing the United States, where, as of 2015, one in three young adults are considered too fat to enlist, creating a difficult environment for recruiters to find suitable candidates for military service.

>Broken down by service, the 2018 report lists the Army as the branch accounting for the highest percentage of overweight troops, with 69.4 percent of soldiers falling under this category. The Army was followed by the Coast Guard (67.8 percent), Navy (64.6 percent), Air Force (63.1 percent) and Marine Corps (60.9 percent).

>Another glaring area of concern highlighted in the study was the inability of service members to get adequate sleep. Nearly 9 percent of military personnel reported taking sleeping medications either “daily” or “almost daily.” The Army reported the highest rate of sleep concerns, with 10.6 percent of soldiers routinely consuming sleeping aides. Marines (9.9 percent), airmen (7.5 percent) and sailors (6 percent) rounded out the troubling category.

>In terms of problematic sleeping patterns, 59.4 percent of soldiers reported getting less sleep than needed, and 33.2 percent answered that the lack of sleep contributed to being regularly bothered by an energy deficiency. Personnel from the other services, especially the Navy and Marine Corps, reported experiencing the aforementioned sleep issues at a similar rate.

>An extensive 2017 review of inpatient and outpatient records, dating from 2005 to 2014, for active-duty military personnel found that both insomnia aPost too long. Click here to view the full text.

190 posts and 59 image replies omitted. Click reply to view.

b32241  No.633000


trips of truth, that's probably is one of the major causal agents

a5d261  No.633014


One day USA became fascistic and restore military back to fully glorious.

9789d5  No.633026


nice edit

dc375b  No.633035


No, they wouldn't. This is a bullshit reason that's often trotted out.

Rule 1. People don't sign up for money. They sign up because they like their country and want to do something for it. Any soldier that signs up for the cash or the benefits is not going to be there when a war happens, they will just leave. We learned this the hard fucking way in desert storm. The reason why we have a recruiting problem is because most Americans don't even vaguely like America anymore. This is a morale problem, you can't throw money at it and reduce standards to compensate.

Rule 2. Basic training is cheap. It does not matter how much weight a soldier has when they join up, it just means you leave them in basic training for longer than the average recruit. They will lose the fat. No one can eat 2000 calories per day, spend 4000 calories per day, and maintain or increase their weight. The reason why troops are fat is not because civilians gained weight, but because we are putting less effort into turning civilians into soldiers.

Rule 3. Rule 1 and Rule 2 will be ignored by everyone because it takes a spine to look at reality and make real adjustments, it's much much easier to ignore reality and do whatever is politically expedient.

dc375b  No.633037


>Isn’t that little bit expensive to keep them fresh constantly?

First of all most of these vending machines are in high traffic/high demand areas - such as next to subway exits where most passengers buy a sandwich when they're going to work or leaving it. This actually means they have to refill some machines multiple times per day just to keep up with demand.

Second of all, do you think it's any easier in a buffet or all-you-can-eat type restaurant? Where food is exposed to air? And everyone is handling it? Japanese machines are climate controlled, they have reduced humidity etc. No one touches the food either, which means the freshness stays for much longer.

The problem Western vending machines face is crime. They can't just put a vending machine next to a bus stop and expect it to not be smashed by tomorrow. So vending machines get put in a corner somewhere and no one ever uses them. Also the glass is there to protect the merchandise from thieves, not to control the climate. All this means the food in them basically has to be resistant to spoilage and taste like ass.

File: fe96fd238b60190⋯.jpg (68.47 KB, 940x620, 47:31, 1543668859542.jpg)

3c5ea8  No.629516[Reply]

how to prepare for another clankening, /k/?

there's one ongoing in one of the biggest powers in the europe so it's safe to say it might spread

i'm already getting some demobil helmet+shield combo but what about gasmask?

497 posts and 230 image replies omitted. Click reply to view.

ae0f60  No.633025



>In gun control laws.

You don't have a monopoly on retarded politicians.

7d32a7  No.633028

YouTube embed. Click thumbnail to play.

New protests in france. Livestreams are up already.

f3e7b0  No.633029


they're too old to have killing capacity and there's nobody who'd want to use them, not to mention exhilarating reload times that are nowhere near hi capacity black assault mags.

.50 inch lead ball literally does less damage than 22. LR if it even can leave the barrel

t. commie legislator pro.

043f73  No.633031



7d32a7  No.633034

File: f9f8b5afd5fe877⋯.jpg (401.25 KB, 1280x1007, 1280:1007, Rote Armee Fraction Anschl….jpg)


After the fire of the greatest war all that was left were ashes. These ashes were the perfect soil for the foul seed of communism to take root.

File: 19005c7682f70f0⋯.jpg (82.9 KB, 960x905, 192:181, DSu0fmzXcAAEGrl.jpg)

b18337  No.632920[Reply]

CUCUTA, Venezuela/Colombia border – As Venezuela continues to crumble under the socialist dictatorship of President Nicolas Maduro, some are expressing words of warning – and resentment – against a six-year-old gun control bill that stripped citizens of their weapons.

“Guns would have served as a vital pillar to remaining a free people, or at least able to put up a fight,” Javier Vanegas, 28, a Venezuelan teacher of English now exiled in Ecuador, told Fox News. “The government security forces, at the beginning of this debacle, knew they had no real opposition to their force. Once things were this bad, it was a clear declaration of war against an unarmed population.”

Under the direction of then-President Hugo Chavez, the Venezuelan National Assembly in 2012 enacted the “Control of Arms, Munitions and Disarmament Law,” with the explicit aim to “disarm all citizens.” The law took effect in 2013, with only minimal pushback from some pro-democracy opposition figures, banned the legal commercial sale of guns and munitions to all - except government entities.

Chavez initially ran a months-long amnesty program encouraging Venezuelans to trade their arms for electrical goods. That year, there were only 37 recorded voluntary gun surrenders, while the majority of seizures - more than 12,500 – were by force.

In 2014, with Nicolás Maduro at the helm following Chavez’s death but carrying through his socialist “Chavista” policies, the government invested more than $47 million enforcing the gun ban – which has since included grandiose displays of public weapons demolitions in the town square.

A former gun store owner inside Venezuela – who told Fox News he has now been relegated to only selling fishing supplies since the ban – said he can’t sell any type of weaponry - even a slingshot - and underscored that even BB ammunition and airsoft guns are only issued to police and military officers.

The punishment for illicit carrying or selling a weapon now is 20 years behind bars.

Prior to the 2012 reform, there were only around eightPost too long. Click here to view the full text.

de5fc7  No.632969


>vote for the people who refuse to compromise on the Constitution

Until they do.

e5ca2c  No.632975

File: ec0c23c52d611d6⋯.webm (2.26 MB, 640x360, 16:9, mgs_is_real.webm)


Nobody who refuses to compromise on constitution is allowed to have any success in politics.



I wish I had this cartoon where nig votes go straight into garbage bin, while white votes get picked up by a sophisticated butler and carefully delivered on a silver platter to a garbage bin

51408c  No.633024



A Kraut and a fucking Polack agreeing on their own blackpill. Now I KNOW there's a conspiracy afoot.

File: 6854ad2f2cd958a⋯.jpg (78.44 KB, 1024x768, 4:3, Clip_M1-SKS.JPG)

5ba7de  No.632471[Reply]

Are there any clip loaded guns that aren't a struggle to load? I love the idea of clip fed fixed magazines. Lighter overall load and smaller volume to carry. I've only ever personally clip fed my SKS and it's not easy to do. Are there guns that do clips right /k/?

29 posts and 8 image replies omitted. Click reply to view.

444199  No.632772


>I've only ever personally clip fed my SKS and it's not easy to do

What the problem is?

Seriously you said it's hard, which it isn't, so frigging explain why you think it's hard.

6b123f  No.632776


Figures, a lot of yugo stuff is left blank.


Yugo 8mm just have some really hard primers and is MG ammo that might not function quite right in anything but a MG.


Not him but if you're blasting bambi the bayonet/cleaning rod tend to make noise.

500646  No.632885


She's a yugo capture I picked up for a song last year. Never had a problem except the safety doesn't want to engage.

44bd5f  No.632987


I love my Yugo M24/47


I don't know about the cartridges, but their rifles are great


Odd, are you sure you got all the cosmoline out?

ec96d4  No.633023


Yeah the safety is mismatched to the bolt.

File: 55c06e0758c6894⋯.jpg (17.53 KB, 350x227, 350:227, 350px-Vbr-b-compact.jpg)

File: d60ba802a1d9156⋯.jpg (63.47 KB, 800x534, 400:267, 800px-PP-19_Bizon_right_vi….jpg)

File: 57cbfff31e9fbd8⋯.jpg (145.69 KB, 960x573, 320:191, c3d029ffa87ab8b2b0d958cba3….jpg)

File: a43c319e44984ae⋯.jpg (103.9 KB, 799x548, 799:548, SITES_Spectre.jpg)

a138e2  No.628552[Reply]

What SMGs are actually good? Most modern models seem like simple plastic shit that's good only for getting money from mall ninjas. Post your favorite models, discuss mechanisms and features you like in them, etc. What calibers would you wants them in?

185 posts and 91 image replies omitted. Click reply to view.

a138e2  No.631822

Okay, i'm basically stuck with casing engineering. It seems very complicated, has many variables and little info on the topic. From what i got i suspect that a cartridge is basically designed around 1 type of powder and is limited to it, the only thing adjustable being the hotness of the load. That'd mostly make handloading look useless and handloaders as people whose time costs less than a few cents but putting that aside, it seems my understanding of versatility of reloading in general and .357 magnum in particular was but a fantasy. Then, we need a cartridge that allows similar long barrel performance as 357 without sacrificing size, recoil and overall versatility that'd allow its use in both handguns and rifles efficiently. So i've got a question - can you reduce the pressure of a cartridge to gain more prolonged powder burn rate? I'm (re)thinking something like 357SIG but longer and with less operating pressure, but if that's not true a complete redesign might be necessary, up to the point of increasing maximum dimensions to .45ACP size, though i have no idea what to do with all these bottlenecks, angles, pressures and powder burn rates all mixed together.

a138e2  No.631823


though now that i think about it, it's not that bad. It seems like it comes more to case capacity then construction, at least in longer barrels. .45super has similar capacity to .357mag and performs slightly worse, comparable to difference in pressure. it doesn't explain how 10mm beats 357 though, might be larger caliber, 3kpsi more and hotter maximal loads observed. .357mag vs .357SIG could also be explained this way - less capacity is partially compensated by 5kpsi(or even 9, in case of CIP). Looks like more space results in better long barrel performance than hotter load, probably due to space setting the pressure distribution and hotness just increase it proportionally over the whole process. Still, these comparisons are kinda weird, as 9x25mm dillon, for example, is 1.48cm3 at 36kpsi is very close to 357mag that has more capacity(1.7) for the same pressure.

f3b140  No.632334

File: 899d7a6d90c6dbb⋯.jpg (65.81 KB, 453x349, 453:349, type2modelb.jpg)

Stolen from >>>/k/628232


>A unique feature of this and other early Japanese SMG designs is the use of an adjustable buffer assembly. As the bolt flies backwards after firing, it is caught by a piston connected to a compressed-air buffer in the rear of the receiver. As the bolt pushes backwards, air in the buffer can only escape through a small valve, which has multiple different sized holes which the shooter can select from. This allows the bolt velocity to be controlled, thus giving the shooter control over the gun’s rate of fire. Our reference book says the rate can be 500 or 600 rpm, but the original report says the buffer has five different holes to select from.

a138e2  No.632367


Pretty cool but messing with air buffers doesn't seem very reliable or durable.

0312f9  No.633019

File: 843416ef8c4a1dd⋯.jpg (124.72 KB, 2500x768, 625:192, BRS-99-stock-open.jpg)

Come on, nobody loves the Polish or what?


(Pic related is actually a BRS-99, which is the civilian legal version we get in Canada. It has a barrel shroud that looks like a can so that we can meet the 18.6in criteria for non-restricted but they also come with the short barrel.)

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