ITT: Interesting Gun Trivia

The smaller mass of the bullet, compared that of the gun-shooter system, allows significantly more kinetic energy to be imparted to the bullet than to the shooter. The ratio of the kinetic energies is the same as the ratio of the masses (and is independent of velocity). Since the mass of the bullet is much less than that of the shooter there is more kinetic energy transferred to the bullet than to the shooter. Once discharged from the weapon, the bullet's energy decays throughout its flight, until the remainder is dissipated by colliding with a target (e.g. deforming the bullet and target).

>>32802855
The FN F2000 was inspired by the MA5B Individual Combat Weapon in Halo

.38 spl started life as a black powder round, 30-30 never used black powder.

>>32802855
The GPMG and M60 have interchangeable feed covers.

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>>32802855
Only 1 in 3 /k/ posters are hasguns.

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>>32806047
Waaaay too high, desu.

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The magwell on an AN94 is cocked to the side

>>32806383
I was trying to be an optimist. 1 in 5?

>>32806402

I knew that, but y tho?

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>>32802855
An empty .45 casing can be used to replace the recoil spring plug on a 1911 in a pinch

>>32806436
I'm going to try this with my Ruger now. I didn't ever think of that.

>>32806436
This will work for a bit, but not forever since the plug also keeps the bushing from rotating freely. When it goes out of position, that casing is going to go flying out.

>>32806426
To leave room for the pulley and cable.

>>32806514
That's why he said >in a pinch

Everything you need to disassemble a 1911 is built into the 1911.

https://www.calguns.net/calgunforum/showthread.php?t=1137012

>>32802855
The relatively new CZ 82 was declared of curatorial interest due to its polygonal rifling.
>>32802884
energy deposit was discredited decades ago
>>32806606
you can detail strip a glock with a shitty plastic pen

>>32806771
>you can detail strip a glock with a shitty plastic pen
Your point?

>>32807781
Ball

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>>32804047
>the MA5 was based on a fish

>>32808331

>>32808331
Jesus fucking christ it took me a minute but I'm dying

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>>32808331

>>32808331
Damn that was good.

>>32807781
>>32808331
You walked right into that one.

>>32802884
No. This would break physics as we know it... Every action has an equal and opposite reaction.

>>32807781

He's just here to argue with everyone about how they're wrong.

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>>32808331

Two bits of trivia
#1- 7.62x51mm has almost identical shoulder dimenstions to 7.62x54mmR and will fit nicely in a 54R chamber.
#2- What you choose do with #1 is entirely your own problem and not at all the responsibility of some anonymous poster on a Himalayan macrame mailing list.

>>32802855
>Trivia

The 59 Series of magazines works in Kel-Tec P11s

P239 and Colt Mustang Slides and frames are 100% interchangeable, as well as the magazines.

Remington 870s have barrel codes that tell when it was made.

I got too many. Give me a specifc subject and I'll give you some trivial.

>>32810610
How about... M16s?

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>>32808331
Mfw

>>32810610
Anything regarding caliber interchangeability, and also mag compatibility (particularly the weirdest ones you can think of)

Also, if you have any "this actually wasn't the first of its kind" stuff it'd be cool (like the AR bolt being pretty much directly copied from the Johnson albeit with the gas system)

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>>32808331

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>>32808331

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>>32808331

>>32808331
Put me in the cap please.

>>32806606
>>>/r/eddit

The PTRD-41 is cock-on-closing like the Lee Enfield rifles.

I read in one of those toilet trivia books that the 1911 is the only military side arm in the world with multiple confirmed air-to-air kills.

>>32808331
>tfw too intelligent to get it
Is it basketball reference?

>>32811796
...

Do I tell him, lads?

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>>32808331
Pretty gud, senpai

>>32811796
I feel I'm too autistic to get it, I assume it's "ball" as in "ball point" (ball point pen).

>>32811796
https://en.wikipedia.org/wiki/Ballpoint_pen

>>32811817
You're right, lad.

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>>32808331

>>32811798
>>32811817
>>32811822
Thanks, mate

>>32811822
The problem is that I get the joke ("you can detail a glock with a shitty plastic pen", your point, ball point), but I don't find it funny.

So it makes me feel like I'm missing something or just humorless.

>>32811829
Can't go back from redpill

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Should I continue adding to it? :^)

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>>32811849
fuck it

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>>32808331

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>>32811887
Have a rare /k/ green in return.

Add >>32811934 to the cap if you want to as well.

>>32808331
Kek

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>>32808331

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>>32806436
Browning is god.

i learned about it a few months ago.

>>32812020
you sure it was Browning and not some of the Colt guys? Browning sold some initial patent rights for some critical components of course but I don't think this was included.

>>32811796
>too intelligent

Anon, I have bad news.

>>32812159
he sold some patents for just components but the 1911 was his from the ground up.

He was an absolute genius, he would often design his guns in his head and build them without ever putting pen to paper. He would then draw up schematics and send them off.

>>32812009
Hey I have that same style bag.

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Hydraulic shock is a term which describes the observation that a penetrating projectile can produce remote wounding and incapacitating effects in living targets through a hydraulic effect in their liquid-filled tissues, in addition to local effects in tissue caused by direct impact. Just as force applied by a pump in a hydraulic circuit is transmitted throughout the circuit because of the near incompressibility of the liquid, so the kinetic energy of a bullet can sometimes send a shock wave through the body, transferring physical shock to tissues whose physiologic function may be disrupted by it (especially in the circulatory or nervous systems).

There is scientific evidence that hydrostatic shock can produce remote neural damage and produce incapacitation more quickly than blood loss effects. In arguments about the differences in stopping power between calibers and between cartridge models, proponents of cartridges that are "light and fast" (such as 9mm) versus cartridges that are "slow and heavy" (such as .45) often refer to this phenomenon. Human autopsy results have demonstrated brain hemorrhaging from fatal hits to the chest, including cases with handgun bullets.

In such meticulously selected cases brain tissue was examined histologically; samples were taken from brain hemispheres, basal ganglia, the pons, the oblongate and from the cerebellum. Cufflike pattern haemorrhages around small brain vessels were found in all specimens. These haemorrhages are caused by sudden changes of the intravascular blood pressure as a result of a compression of intrathoracic great vessels by a shock wave caused by a penetrating bullet.

It has often been asserted that hydrostatic shock and other descriptions of remote wounding effects are nothing but myths. Correspondence in the journal, Neurosurgery, reviews the published evidence and concludes that the phenomenon is well-established.

>>32802855
Pistols were not practical until the invention of the wheel-lock mechanism. This actually created controversy in Europe as people were afraid of portable, ready-to-fire firearms that could be concealed. This was the 16th century.

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It's important that we don't forget just how much of a weak fucking sister 5.56mm out of a short barrel is. 5.56mm M855 ammunition is optimized for a 20" barrel with a 1:7 twist. It is not surprising that its greatest velocity of 2979 ft/sec is obtained in a 20" barrel. After all, Stoner designed the cartridge for the 20" barrel.

Decreased velocity with barrels much shorter than 14.5" (the M4 carbine barrel) have a number of unwanted effects. Lowered linear velocity produces lower rotational velocity, which will result in diminished gyroscopic stability of the bullet. It will also result in significantly decreased projectile kinetic energy, decreased ability to generate a significant would channel, and will reach a point of diminishing returns where lethality of the round definitely comes into question. Once you go below 11", muzzle velocity nosedives. M855 bullets traveling below 2500 fps when impacting a target will not produce a lethal wound channel. On the graph, anything below the red line is shit.

Secondly, with shorter barrels, tuning of the gas port for weapon cycling becomes more critical. Adding a suppressor, which does slightly increase bore pressure, will result in more erratic and forceful cycling of the weapon leading to earlier weapon failure. It is also apparent that the pressure near the barrel rises exponentially with less barrel length, which necessitates that suppressors on shorter barrel weapons be designed to handle much higher pressures.

In short, there has been a cultural shift from the 20'' barrel length in AR15/M16 weapon systems chambered for 5.56 to progressively shorter barrels for the purpose of producing an increasingly more compact assault weapon without resorting to a bullpup design. This causes problems with sound, and lethality. If you don't want those problems, use a bullpup, or a different caliber.

>>32806047
>>32806383
Do I own guns?

>>32811714
WTF is this even supposed to mean?

>>32806402
That's actually an optical illusion. If you measure it with a micrometer you'll see its dead on straight.

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>>32808331

>>32810894
>Anything regarding caliber interchangeability, and also mag compatibility (particularly the weirdest ones you can think of)

The following smaller calibers fit in larger calibers. They go one way. Do not try them the opposite way.

.357 Mag -> .38 Special, .38 S&W

7.62 Tok -> 7.63 Mauser

.322 Fed Mag -> .32 H&R Magnum, .32 S&W Long, .32 S&W,

7.62x38R -> .32 S&W Long.

.44 Magnum -> .44 Special

That's really about it.

>>32813073
>Mag compatiblity

Marlin camp Carbine uses 59 Series Mags

Ruger Carbine users ruger P95 Mags

(Everyone knows about beretta's PX4/92 series compatible with the Cx4, and Keltecs Mess of rifles)

P229 Mags in 9 and 40/357 are the same damn thing with different witness holes and VERY slightly different followers, but they will work in each other guns without problem.

CZ 75s in 9/40 use the exact same mags with just witness holes. Nothing else is different.

XDs use the same magazines in 9/40 with different witness holes.

Glocks don't, funnily enough.

Any gun that is chambered in 357 Sig is using .40 cal magazines of the same model.

P228 Mags will fit and work in a 9mm P229. Both sizes.

FNP mags don't work in a FNX.

XD mags don't work in a XDM

That's all I got.

>>32810695
I got nothing.

The M16 was supposed to have a top charging handle like the FAMAS.

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>>32813106
Also, single stack Makarov magazines work in both .380 and 9x18 guns.

The cartridges are similar enough to where it doesn't matter if you use a .380 magazine in a 9x18 gun or a 9x18 magazine in a .380 gun.

>>32806417
still too low

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>>32808331

*Barrett stole the 3 lug triangle bolt design from the Leader T2
*The guy who designed the Leader T2 designed the Bushmaster M17s
*There are two gens of M17s, the first had a shorter magwell and the receiver pins weren't well designed and allowed for the upper and lower to separate an cause double-fires, the second gen had a longer magwell and fixed this issue.
*The Mg42 is roller-locked, short recoil; the Mp5, G3, CETME B,C and L are roller-delayed
*The Cz52 pistol is also roller-locked, short recoil.
*The Calico 9mms are roller-delayed and there are two generations. The first have a straight safety and reliability issues and could potentially fire when the bolt dropped. The second gen has a curved safety and fixed this issue.
*IMI made closed bolt full auto Uzis in all sizes.
*The Suomi M31's end cap is an air valve
*The AKM receiver is 1mm thick, the RPK is 1.5mm thick.
*Original AK slab mags are 1mm thick, the newer steel ones are 0.75mm
*The original Saiga trigger group had an overtravel stop under the trigger (the Saiga 308 did not have this)
*Izhmash made 2rd Saiga 12 mags
*There were Saiga 12C models brought into the US during the assault weapons ban for police agencies. They were LEO marked and have ak100 poly folders and came with LEO marked 8rd mags.
*The first models of Saiga to be imported were the 410s. They had a different gas system and were marked 3" magnum only and also the side rail had triangular pointed ends.
*The veprs were first imported and brought to market by Robinson Arms, the same company that makes the XCR.
*The RPD, DPM, DTM, and DShK are all the same family of guns and use a flapper-locked system
*The Sks and Pts41 are similarly in the same family and use the same system
*The Sterling smg can use both Sterling and Sten mags; the Sten cannot, however, use Sterling mags
*The Carl Gustaf M/45 smg uses Suomi M31 stick mags, and has a magwell that can be removed and allow for the use of Suomi coffin and drum mags.
1/2

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>>32808331

2/2
*The PM63 smg has its ejector on the magazine feedlips and has a built in rate reducer in the rear of the slide.
*The Vz61 fires from the closed bolt and has a rate reducer built into the grip.
*The Mg42 bipod can be mounted in two different spots on the reciever.
*The original Mg42 charging handle did not lever out and would require considerable force to retract.
*The M49/57 uses standard PPsh magazines, but was not issued with drums

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>>32808331
Beautiful execution.

>>32802855
On M1 Garands that have a gas tube plug that is "X" shaped (as in, for a phillips head screwdriver, not a standard) the plug has a spring that causes it to vent gas when a grenade launcher is attached, necessary to allow the launcher to properly function.

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>>32813222
M 1 7 S

>>32811764
A single confirmed air to air kill. A downed pilot brought down his Japanese dogfight nemesis with a lucky shot. Allegedly

>>32813601
There was a guy in Bushnell, FL who did the M17s conversions. Look up Kurt's Kustom Firearms. He was a cool guy and had a small forum on his website. You can find it on the way back machine. He did AR piston conversions also using his own parts.
Really a nice guy. Sadly he died in a motorcycle crash some years ago.
After that K&M took over the role of customizing the M17s

>>32812733
People who claim that hydrostatic shock is a myth are fucking pants-on-head retarded

>>32813145
To add to this, you can also shoot and cycpe .380 in a 9x18 mak. But not the other way

>>32813781
Cycle*

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hrese some trivia for ya

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>>32808331

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>>32808331
wew

>>32802884
Can you elaborate? I'm trying to work it out and I can't see how the ratio of masses relates equals the ratio of energies. It's the ratio of velocities from conservation of momentum.

>>32809791
The "equal and opposite reaction" thing applies to forces, not work.

>>32812973
you don't know how to greentext, so you should go back to where you came from (reddit)

>>32811829
it's not actually funny, 14 year olds will reply with laughing reaction images to anything remotely resembling humor

>>32802855
Hi guys, I'm Anon, from 4chan, here for your weapon trivia thread on /k/.

Now, you probably know that the Americans took shotguns into World War Ones, because we're goddamn Americans. We knew what shotguns could do in the trenches and goddamn they did it well.

Did you know however, that the Germans actually had the temerity, in September of 1917 to lodge a formal protest...

... I do believe that I just got so overcome by the awesomeness of the shotgun that I just said '1917' instead of saying 'September 1918'...

...saying that the Winchester '97 was a violation of the Hague conventions and the civilized rules of war.

Well, civilized? Maybe. Rules of war? I don't think so.

The US Government took a look at this and said "You know what? Aren't you the bastards that came up with the idea of flamethrowers? Didn't you fuckers invent poison gas and start using it too? You know what? We're not going to stop using shotguns and if you execute any Americans we're gonna execute all our German prisoners too, so how do you fucking like that?"

Guess what? Six weeks later the war was over. That's how they liked it.

Use zipties to secure one end of sks stripper clips, so you don't lose rounds pulling them out of pockets and pouches

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The Hague Convention bans militaries from using hollow point ammunition because it's too deadly. However, there are no laws preventing civilian use of hollow points. Many civilian militias believe that their access to more deadly ammunition gives them a crucial edge against government forces.

>>32813800
elaborate?

>>32818811
war:
>get that fucker over there (who maybe was drafted into this) out of commission so that he is no longer a combatant
civilian:
>stop that fucker right here who is intent on harming me or my loved ones

>>32816476
>I know how to greentext
>I've never been to Reddit
>But you seem to know a lot about that place.

>>32813781
No joke?
I'm almost scared to try in my P64.

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>>32808331

>>32818811
>The Hague Convention bans militaries from using hollow point ammunition because it's too deadly.

You'd better fucking read the wording before you say shit you don't know about, and no, I'm not doing your homework for you.

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>>32808331

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>>32808331

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>>32808331

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>>32808331
that took me a minute.

>>32804534
I knew .38spl was originally designed for black powder, but I'd always just assumed that .30-30 was too.

Snipers need to account for gravity, wind, air temperature, air humidity, and the Coriolis effect when taking long distance shots.

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>>32808331

hoo boy

A total of 20,307 AR-18s and AR-180s were manufactured by ArmaLite, Howa, and Sterling between 1969 and 1983

>>32812765
Mk 262 would like a word with you

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>>32808331
Took me more than a minute.
well

>>32812765
>In short, there has been a cultural shift from the 20'' barrel length in AR15/M16 weapon systems chambered for 5.56 to progressively shorter barrels for the purpose of producing an increasingly more compact assault weapon without resorting to a bullpup design. This causes problems with sound, and lethality. If you don't want those problems, use a bullpup, or a different caliber.
> for the purpose of producing an increasingly more compact assault weapon without resorting to a bullpup design
>more compact assault weapon
>assault weapon

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>>32808331

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>>32808331

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>>32808331

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>>32808331
Sometimes the right kind of asshole shows up. Well done.

>>32813073
don't forget 5.56x45 -> .223 rem>>32813073

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>>32808331

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>>32808331
That was some great wit. I hope you feel good about yourself right now, anon.

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>>32802855
I got a few historical facts. Most are probably well-known here, but some anons might find them cool.

>Beretta is the oldest still-active firearms manufacturer in human history. Founded in 1526, they’re coming up on their 500th anniversary.
>John Moses Browning sent a prototype BAR with his son into WWI.
>H&K started when 3 former Mauser engineers started making sewing machine parts in 1949.

>>32813000
No it's not retard.