If I built an 8 gauge semi auto shotgun would it be considered

>>30645381
I've never understood how on every Halo shotgun the barrel is about half the size of the mag tube.

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>>30645381
Since we're talking about it, what possible advantages would there be for a top loading pump action?

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>>30645481
Lower bore axis I guess.
Possibly easier to reload?

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>>30645481
I was watching some YouTube vids about techniques for fast loading shotguns for competitive shooters. I think top loading might actually be much faster and more ergonomic. They flip the gun upside down half the time anyway.

Top loading would also be easier to design bottom ejection too. Good for both tacticool considerations and when you're hunting in a blind.

One of the last frontiers for modern small arms design is recoil reduction. A tactical 8 gauge would require innovative solutions to make it practical, but it could be done. Putting the barrel below the mag tube would reduce muzzle rise (think mateba revolvers).

Just my uninformed thoughts. I'm not a gunsmith or an engineer or anything. I do feel like there's very little innovation in the firearms world though.

>>30645381

There's an exemption in the NFA DD laws for "sporting shotguns". Note that this is up to ATF interpretation as to what exactly is "sporting", which is why the USAS-12 is a DD but a Remington 870 or Saiga aren't.

>>30645626
Tricky. Are all legal 12 gauges considered DDs with a "sporting" exemption?

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This has potential to be a great thread.

All you legalfags and gunshopfags jump in here please. Tell us anything you know about 8 gauges and other large calibers, DDs, ATF sporting definition, historical test cases, etc.

Engineerfags you have no excuse. This is your moment. Get in here.

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>>30645381
I won't lie, if someone produced a shotgun, even an 8-gauge, like that sexy beast from Halo, I would fucking buy it.

>4+1 pump
>No fucking reason to exist whatsoever
>Extremely uncomfortable to shoot
>Slugs can reliably kill engines
>High Brass Buckshot approaches limb removal tier

I would buy the shit out of it senpai.

>>30645993
What if it was really awesome but cost like $10,000 though.

Could we see the creation of a redonkulous shotgun culture just like we have a precision shooting community today?

>>30646058
>cost like $10,000 though.

Ffff..... that would put a damper on it..

What fucking pump-action would ever cost $10,000 tho?

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>>30646037
>>Extremely uncomfortable to shoot

You just gotta lean into it like a real SPARTAN

>>30645626
>>30645762
Sporting exemption would only apply to 10 gauge and smaller. It's illegal to hunt with anything larger.

>>30646074
For an 8 gauge tactical semi to be practical at all you might have to go carbon fiber barrels and titanium and iconel and shit like that.

Costs can be reduced significantly with mass production of course, but the first IRL halo shotgun is gonna be pricey.

Imagine all the youtubers reviews though. Even if the cost is $10k they won't be able to build enough of them to meet demand.

>>30646112
8 gauge is legal for hunting in Europe though. I heard that somewhere, I think.

Anyway there's a bunch of videos if you Google it.

>>30646110
Smokeless 8ga shells used in kiln-guns have levels of muzzle energy around 8 000 - 10 000ft/lbs.
That's more potent than a .600 Nitro express elephant cartridge.

"Just lean into it brah!"

>>30646366
>t. manlet

Seriously though, how does this compare to a standard 12 ga and 10 ga?

Also those kiln slugs are special shells fired from special industrial equipment. A hypothetical 8 ga tactical load, fired from a shotgun designed around recoil reduction and ergonomics, would be much different.

I'm just guessing here but the increased diameter of an 8 ga would allow for a shorter shell and thus more rounds per mag

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>>30646486
>Seriously though, how does this compare to a standard 12 ga and 10 ga?

It's about 4-6 times more powerful than your typical 12 ga 2 3/4" load.

>Also those kiln slugs are special shells fired from special industrial equipment.
Yep, ammunition is available from Winchester in a number of loading including lead buckshot.
There are also multiple power levels, some low power shells are only about twice as powerful as an 8ga magnum load.

>the increased diameter of an 8 ga would allow for a shorter shell and thus more rounds per mag
Yes, but all the 8ga shells I've personally seen (and own, pic related) are siginficantly longer than normal 12 or 10 gauge shotgun shells, although a 3½" magnum shell might get up to a length similar to the "normal" 8ga shells that only have a roll crimp and lack the long protruding slug found in the industrial loads with zinc loads.

>>30646112
No, the 10ga and smaller limitation only applies to migratory birds and water fowl. Things such as turkey or deer can be legally taken with an 8ga. Further, the sporting purpose exemption applies to ALL firearms with a bore diameter over .50in, meaning 12GA (or 16ga or 20ga) can be declared DDs at a moments notice by the ATF. Look at the USAS12 or Street Sweeper.

>>30646486
>kiln slugs
>>30646566
>kiln slug

What do they use them for?

>>30646721
>>30646721
Concrete and metal manufacture/processing.

A cement kiln is basically a massive fucking steel tube (like 6ft in diameter) that rotates while heated to cook raw materials into cement.
They use fuckhueg slug guns on pedestals to break lumps of slag that build up inside the kiln tube, since it's too long and hot to poke things in to.

>>30646566
If I wanted to buy some 8 ga shells from Winchester for fucking around/experimental purposes, would I need a special licence or something? Is it legal for civilians? I went to their website but no dice. Is their any way I could buy empty shells/brass/plastic in bulk?

>>30646831
No

Yes

You actually have to call someone to ask

http://winchesterindustrial.com/loads.html#distrib-section

>>30646110
>walkingdead.gif

>>30645607
>The trigger mechanism isn't animated
Shit/10

>>30645585

Someone needs to make a longer/webm version of this that shows the new shell being loaded

>>30646862
Before I call and waste their time, do you know if they have a minimum order? Will they sell to some schmuck off the street like me?

>>30648145
>do you know if they have a minimum order?
They almost certainly do.
And it's probably pretty major.

>would I need a special licence or something?
No

>Is it legal for civilians?
Yes

>Is their any way I could buy empty shells/brass/plastic in bulk?
Probably not

>>30646366
Pussy
https://youtu.be/GXEK7rcqO-Y

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>>30645481

>>30645381
I can't tell which is the barrel(s) and which is the magtube(s)?

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>>30648726
The sheer joy in his laughter after firing that mag made me grin like an idiot. That is amazing.

>>30645585
That's just lude anon

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>>30645957
I honestly didn't know that 8 gauges were classified as DDs. In fact it sounds so ridiculous even by ATF standards I think it's bullshit.

>>30645607
Having a high bore axis will reduce felt recoil, on a Chiapa rhino, there is less muzzle ride than a standard revolver but all of that force is directed straight back into your hand. Rather than rotating it up in your hand, the single action army demonstrates this well due to its curved grip.

>>30648877
Yes
Any rounds over (and maybe including?) 37mm have to be registered as individual destructive devices.

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How about a double barreled 4-guage?

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>>30648971
How do you like your wrists?

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>>30649030

i hate them

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>>30648971
>RIP
>AND
>TEAR

>>30648832
Top is mag, mid is bbl, bottom is just a track for the pump and I think the flashlight.

>>30648971
Looking at that barrel size it is clearly NOT 4-guage

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>>30649056
Then it is the perfect gun for you.

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>>30649099

eh

>>30648877
Even 28ga is. That's why the bigger version of the Judge never came to light.

what would an 8 gauge slug do to level IIIa soft armor with a trauma plate

>>30648955
Wtf I hate the ATF now

>>30649208
It would break your ribs anon

>>30648358
Bullshit. Each 8ga slug is a DD

>>30649099
Maybe in their world, they use something other than lead to determine the gauge? Ya know, supie dupie furture times material? Idgaf, that game is stupid anyways.

>>30649208
Chest = crushed

>If I built an 8 gauge semi auto shotgun would it be considered a Destructive Device?
If it gets a "sporting exemption" no it would not be

That;s how 12 gauge shotguns are legally allowed, they get an exemption from DD regs

How it does or does not qualify as one, I do not know.

What about a captive slide mechanism for recoil reduction?

More mass than a bolt, and it could be linked to the pump for that semi auto/manual style.

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>>30645481
Russia has a pump forward shotgun with the tube on top. I don't know anything about the ease of use though, it's military only and the US doesn't get anything imported anymore

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>>30646757
Holy fuck that's metal.
Pic unrelated.

>>30649297
No.

>>30645762
A DD is a gun over .50 with no 'sporting purpose', so I think it's the other way around. That being said, the director of the ATF does have the authority to 'ban' pretty much any shotgun he wants

>>30645381

No

Unless you make it a scary assault weapon

If it's a timber stocked traditional break/pump, it'd be fine

>>30646757
They may build a cylinder of bricks and tear it down and replace it.

They made workers enter it with sledgehammers before someone had the bright idea of just shooting the fucking shit down.

>>30646152
Why carbon fiber though? That would only be best if used in the stock or MAYBE the tube/interior parts. Carbon fiber is incredibly brittle unless used in an alloy, and with that consideration the cost for such a thing would be rather immense. It would be a challenge to design such a magnificent firearm

>>30651903
I'm an idiot but I think the way it goes is that you make the barrel lining out of metal for durability and then wrap the whole thing in carbon fiber to hold the pressure. End result is normal performance with less weight and greater stiffness. Somebody tell me if I'm wrong here.

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>>30645381
This man is holding a 6 gauge if that's good enough for you

>>30645381
Look into the shotgun(s) from hell, OP. They weren't semiauto but I think a couple were in 8 ga.