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Alright. So how come I can pull back a straight pull bolt but

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Thread replies: 75
Thread images: 15

Alright. So how come I can pull back a straight pull bolt but the force of bullet detonating in the chamber doesn't blow it back open?
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>>32942390
Basic physics.
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>>32942390
Because locking lugs
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When you pull back on the bolt handle it turns the locking lugs, unlocking the action
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Try and pull it back without the caming lever/pin
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>>32942408
Uhhh, well how can that be possible? How does my horizontal pull create lateral/vertical motion in the lugs?
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>>32942407
This. The bolt rotates when it is fully inserted.
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>>32942408
>>32942407
locking lugs dont make sense you fucking redditors
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>>32942390
cams
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>>32942424
Cam surface pulls a peg along a slot that forces it to turn
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>>32942433
0/10
See me after class
>>
>>32942390
didn't you make this thread last week?
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>>32942424
You know those ratchet automatic screwdrivers that you push to make them spin?
It's like that.
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>>32942433
Calling other people names because you're a dumbfuck who can't comprehend simple machines is childish.
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>>32942429
How?
>>32942443
What are those?
>>32942446
Uhhhh. Alright
>>
>>32942456
>>32942478
Hl Reddit
>>
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>>32942480
See this part. Pushing in causes the bolt to rotate, engaging the locking lugs.
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>>32942433
>>
>>32942390
cams and what acutate them
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>>32942490
Oh okay.

uh. okay. Um, what is the uh, point of straight pulls then? Why not just use a traditional bolt action and rotate the lugs manually with the bolt handle?
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>>32942424
the same way as a semiauto rifle only instead of gas moving a piston it is manual force moving a handle to operate the mechanism
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>>32942573
faster simpler bolt manipulation, the idea was made obsolete when people figured out that recoil forces and gas could make a straight pull into a semi auto
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>>32942594
ok.


How does gas do the job? Does it just act on some sort of lever that causes the locking lugs to turn?
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>>32942622
It pushes the bolt carrier group backwards, the same way you would pull it back with your hand.

Are you actually retarded?
>>
>>32942573
there is no point besides swiss mountain jew magic. thats why pretty much all modern bolt actions are not straight pull. its too complex for no gain
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>>32942622
The expanding gas from the bullet being fired is forced back and pushes on the bolt carrier group, or in the case of a piston system pushes on a piston which then pushes the bolt.
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>>32942622
Not usually. The gas typically acts on a piston in a secondary tube below/above/to the side of the barrel that pushes then cam backwards, causing the bolt to rotate and be pulled backwards. This unlocks the action and takes it backwards until the spring pressure is too great, forcing the bolt back forward, chambering a new round.
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>>32942636
.......

How come the gas can push the carrier group backwards but the recoil can't?
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>>32942658
Okay this makes sense.
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>>32942672
THE LUUUUUUUUUUUUUUUGS
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>>32942390
Tiny Jedi use the force to keep it in place.
>>
>>32942424
>>32942433

Alright you fucking retards, I'll explain it in the smallest possible words.

Take a piece of paper, don't fucking argue, just goddamn do it. Draw like a cross between an L and a J on it, like a short "tailed" J, it needs the bend because of I told you "draw an L" when we get to the next step you'd say "but I hit a 90 degree angle, my tiny brain can't conceive of a bend!

Now that you have the L drawn fold the paper into a tube to that the long part of the L goes along the long part of the tube and the short arm of the L wraps around the tube.

Now, with the paper a tube, put your finger at the beginning on the line you drew amd ONLY MOVING THE PAPER, bring your finger to the end of the line. As you slide the paper your finger reaches the bend in the L, the only way for it to get to the end is for you to ROTATE THE PAPER.

That's how it fucking works you goddamn monkeys. The bolt uses a cam and a rotating locking lug. Your finger represents a cam that when it reaches a cam slot forces the locking lug part (the paper) to rotate. The bolt is more than one piece and the "point of rotation" is held in by pins, so it's captive but not permanently.

Yes, locking lugs male sense, yes, WITH A CYLINDER it's trivial to turn lateral force into rotational force through the use of cams.
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>>32942714
I understand now. So the gas acts on a piston which acts on a cam which rotates the lugs. Gee, I need to go to school to become an engineer! I am very good at this!
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>>32942433
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here you go nigger. watch the piston and bcg actuate the bolt via the cams (grooves) on the bolt.

if you cant understand whats going on by watching it youre clinically retarded
>>
>>32942764
This was helpful. So, it almost looks like the lugs don't get rotated until the bolt carrier group begins to get pushed back?
>>
>>32942672

You have many types. A "direct blowback" is literally the recoil moving the bolt backward.

The AK uses a gas tube in the barrel to redirect gas against a piston that pushes A DIFFERENT PART of the bolt carrier group than the main explosion which allows it to unlock the lugs and pushes the carrier back.

The AR uses a direct impingement system wherein a gas tube let's some high pressure gas push on the gas tube on the carrier pushing it back the exact way that pulling on the charging handle pulls back. This acts on the bolt carrier and not the bolt face allowing the cam to unlock the lugs.

There are many systems, most direct some energy to a different part of the carrier so it can be pulled back and unlocked.
>>
>>32942424
>>32942433
Holy shit! Is this summer day/k/are?
Purge yourselves of your ignorance:
https://youtu.be/GJzXG7MYX1c

You'll see how the same mechanism in the k31 applies to modern gas-operated firearms.
>>
>>32942772
exactly. a part of the bcg digs into the cam when its pushed by gasses/pulled by hand, causing it to rotate

if you removed the gas tube it would essentially turn the ak into a straight pull as no gasses are acting on the piston.

if you removed the bcg (and welded a piece of metal to the bolt, to turn it by hand), you now have a traditional bolt action. (however you'd have to manually chamber a round and put the bolt in place)
>>
>>32942923
>if you removed the gas tube it would essentially turn the ak into a straight pull as no gasses are acting on the piston.

This was the most helpful thing for me, and I don't know why.
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>it's this thread again
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>>32942739
Wut?
>>
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for the same reason you letting one rip while I fuck your nasty ass doesn't shoot my dick out.
>>
>>32942739
>simplest possible way
>takes multiple paragraphs
>includes instructions on how to waste a piece of paper

TLDR
>>
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>this entire thread
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>>32942390
swede magic
>>
Didn't we have this exact thread like two weeks ago?

Is this some advanced form of trolling through pretending to be retarded?
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>>32944043
It is but there are so many new people on board that op is getting kick out of it.
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>>32942739
>>
>>32944260
Build a wall around /k/, deport the /pol/acks.
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>>32944280
>Build a wall around /k/
To keep them out or us in?
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OP please go back to preschool.
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>>32944280
/k/ and /pol/ are natural allies.
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>>32942390
swiss mountain magic
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>>32944934
Yes
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>>32942573
Uh uh uh uh you're a retard
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>>32945049

Yea, and Crusaders and Saracens are natural allies.

If you've been around long enough you know that /pol/ is contrarian above all else. When Bush was in office they were overwhelmingly in favor of gun control.
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>>32942469
Yes he did
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Saged and reported.

You have to be 18 to post here.

Locking lugs you stupid fucking preteen.
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>>32945948
Did you just assume my fucking gender?
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>>32947817
the masculine is the appropriate form in the neuter case, or when gender is unknown.
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>>32942973
Note that it also sprays hot partially burned powder, gas, and possibly tiny bits of metals straight back into your aiming eye and face.
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>>32947895
That's how "nigger" was for a long time. I have no idea how it went from "not white and not asian" to only black people to another synonym of "anon"
>>
What the actual fuck is with all of this hate? This seems like an actually legitimate question and all of you people just shitpost and barely even help the guy out. If it really was bait, then OP would have stopped posting after the first real response as his fun would be over.

This IS a weapons related board after all, and knowing how weapons such as firearms work is a fundamental part of /k/.

Some of you say you have seen this exact thread before, but that does not necessarily mean it is automatic bait. If it really is bait, then screencap it for the next time it is posted so you can prove it, otherwise your word is all we have and this is the internet, so your word is shit.

It is a reasonable and probably common question for those who are just getting into firearms. If you want more people to support gun rights, don't be so fucking elitist when new people ask questions about the thing they want to get into, or it could turn them off from this altogether.

Everyone keeps asking why /k/ and all of the rest of 4chan has been going down the shitter lately, and her is why. Thus entire thread is why you fucktards. Have some goddamned sense.
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>>32948908
>If it really was bait, then OP would have stopped posting after the first real response as his fun would be over.
Clearly you must be new to the internet in general if you believe this to be the case.
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>>32942474
woah what the fuck is this?
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>>32949054
Clearly, you must be new to 4chan. It wasnt always like this though
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>>32947817
We're all attack helicopters here right anon?
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>>32942573
There isn't any major advantage, which is exactly why straight pull bolt actions are uncommon.
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>>32942390
OHHH Is that why some guns have a two-motion bolt action?
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>>32949403
Major, no. But cold as fuck in the swill mountains 100 years ago with wool mittens...shit a giant charging handle with only 2 motions would start to sound pretty good.
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>>32949163
you've never seen a push driver before?

heres another tool you probably never seen. A .22 cal type drill
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>>32949449
*swiss
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>>32945049
we don't need pol's nonsense here
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>>32942424
Swiss Germanic magic
Thread posts: 75
Thread images: 15


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