BB Machineguns

[nbk2000]

Found this awesome site that sells BB machineguns.

<a href="http://www.pipersprecisionproducts.com/" target="_blank">http://www.pipersprecisionproducts.com/</a>

<img src="http://www.pipersprecisionproducts.com/images/MVC-bp1F.JPG" alt=" - " />

Interested now? :D

Check out this video showing what a "<a href="http://www.pipersprecisionproducts.com/images/MVC-niteshoot.MPG" target="_blank">Bullet Hose</a>" these things are. :)

Yes, it's BBs and not 7.62mm NATO AP...BUT...1,200 BB's a minute at 600FPS isn't something you'd stand still for either. Oh, and just the intimidation value of its appearance alone would likely mean you wouldn't even have to fire a shot! :p

The most "practical" one is the Strafer MKII which uses a 20 oz CO₂ bottle for propellant and only cost $300. The thing can chew through a 55 gallon drum like a sawz-all. :o

[vulture]

The best thing is, those videos don't show any recoil at all! This thing would be great for suppressive fire. I even think you can scare the shit out of someone carrying a real gun...

[nbk2000]

You'll also notice that the loudest thing in the videos is the glass breaking or the metal being cut, not the weapon itself. And, yes, these ARE weapons.

Sure, a single BB isn't very dangerous. But, when you're getting hit 6,000 times a minute with them, each one removes a little chunk of flesh/bone (I'm aiming for the head <img border="0" title="" alt="[Wink]" src="wink.gif" /> ), quickly drilling through to the brain.

It would be capable of blinding a person in a fraction of a second. If it was, for instance, aimed at a person inside of a vehicle, it'd first shatter the windshield, then break through, then chew up the interior and the occupant within. And do so without any annoying blasts to draw witness attention. :)

This would be perfect for indoor room clearance if you could boost the velocity to about 1,000FPS. Then it'd be similar to firing a shotgun with #4 buckshot, only it'd be a continuous hose you could sweep around to cover everything.

Plus, with it's saw-like cutting action, you could cut holes in sheetrock walls, cut locks out of wood doors, bust widows, etc, and get the occupants within. All with no one outside of the building hearing a thing. :)

Plus, no GSR, ballistics, noise or flash, and all the other problems associated with ballistic firearms.

'Course, if I'm facing down SWAT piggies, I'm still choosing the M-14 or P90. This would be a special weapon for special "missions".

IDEA!

If the BB's could be fired rapidly enough so that the distance between each on was less than the spark gap for a high voltage source, would it not act the same as a solid conductor? Like a TASER wire, only it's a projectile weapon at the same time. :D

You'd be electrocuting them at the same time as your chewing a hole through them! <img src="http://www.roguesci.org/ubb/icons/icon23.gif" alt=" - " />

<small>[ November 11, 2002, 01:57 PM: Message edited by: nbk2000 ]</small>

[knowledgehungry]

NBK,the problem with using the bbs as a "taser line" is that the BBs do not fire in a straight line. They scatter too much to conduct electricity me thinks. But it would be fun to test it out <img border="0" title="" alt="[Wink]" src="wink.gif" /> .

EDIT: I just looked at the strafer's night video and realized that it should work to be a taser wire, I doubt the GAUSS style guns would work though.

<small>[ November 11, 2002, 07:43 AM: Message edited by: knowledgehungry ]</small>

[Anthony]

Glad to see they've added some new models to the basic Vulcan :)

Makes you wonder what the hell kind of loading/firing system those things run on!

[zeocrash]

</font><blockquote><font size="1" face="Verdana, Arial, Helvetica">quote:</font><hr /><font size="2" face="Verdana, Arial, Helvetica">The most "practical" one is the Strafer MKII which uses a 20 oz CO2 bottle for propellant and only cost $300. The thing can chew through a 55 gallon drum like a sawz-all</font><hr /></blockquote><font size="2" face="Verdana, Arial, Helvetica">fucking hell man those things are cheap over there. they cost like £3000 here.
anyway, those pellets would be like buckshot, and would cause untold dammage to any unsuspecting person., although they dont have the penetrating power of a real gun, they're a load quieter.
also it would be quite hard to conceal and since the public wouldn't suspect it to be a bbgun, you could end up with an armed response unit on your ass quite quickly

[zaibatsu]

Zeocrash, those things are illegal in the UK, as they are fully-automatic and over 1J in power. You will be thinking of airsoft versions, but I'm guessing this has a lot more power.

[SofaKing]

Sweetness is mey weakness !

I've liked the idea of very fast firing, high (higher)velocity bbs for a long time.

But would these really be effective against full body armored swat types. Yes you could probably take of their limbs, and maybe even chew through armor, but it would take to long an you'd be shot by then (unless your wearing armor too).

Couldn't somthing like this be made ? but better with like 1000fps X 10000spm. that would be nice.

[Maddoc]

ARRRRGGGHHHHHH YEAH!!!

Now I've got one hell of a sticky leg... I believe its time to warm up old el "Cardo Credito" and have a little fun.

[probity]

"FPS Limits: The commonly accepted UK limits are 328fps for AEG rifles, and 500fps for 'single action'/'semi automatic' (fps quoted using 0.2g bb)."

There are no fps limitations in the US though. Boosting the fps from 500 to 1000 would be quite a feat...

[Agent Blak]

The conversion kit is pricey...
Co2 conversion kit for Vortec 2000 & Strafer w/20oz Co2 tank $165.00.

How hard would it be to make a conversion kit? You could always use a remote set up like some paintball guns have

<a href="http://www.paintball-online.com/product_list.asp?dept=133&last=133" target="_blank">http://www.paintball-online.com/product_list.asp?dept=133&last=133</a>

<a href="http://www.paintball-online.com/product_information.asp?number=TKNP45A&variation=68&aitem=2&mitem=&back=yes&dept=86" target="_blank">http://www.paintball-online.com/product_information.asp?number=TKNP45A&variation=68&aitem=2&mitem=&back=yes&dept=86</a>

Lets talk Back pack, TrenchCoat, Body armour, A back up piece, Gas mask, Tear Gas...

Now were cooking with nitro :cool:

[nbk2000]

The CO2 kit you called "pricey" would be only 1/3rd of the cost of the high pressure nitrogen tank listed in the 2nd URL you posted.

And the CO2 is worn in a pouch with a hose connecting it to the BB weapon, so it's not really a problem either.

[PYRO500]

I don't think the gun could be used as a taser for several reasons, one is that the bb's aren;t exactly 100% in a solid stream, they are spaced out just a bit and the electricity would have to arc across all the bb's. aother reason that it wouldn't work is that the dielectric breakdown of air is about 1.14 mm/kV so you have to have a fairly high voltage for it to work, Another thing is that the bb's are a curved surface witch makes striking arc's more difficult and finally an arc is very hard to strike with turbulent air all around it.

From what I'm seeing it looks alot like the trigger is a simple compressed air blow gun, these will not handle the high pressured of CO2! What you need is a CO2 regulator and some hoses to attach the regulator output into the gun.

[frostfire]

<a href="http://thqreviews3.homestead.com/matts_vulcan.html" target="_blank">http://thqreviews3.homestead.com/matts_vulcan.html</a>

this is the original prop I believe

[Anthony]

From some of the pictures on the page frostfire linked to, you can start to see how the gun works.

Probity, those numbers are guidelines for airsoft - this is not an airsoft gun!

[Agent Blak]

The systems I listed were as examples...

But if you are going to toss the money around you might aswell go bigger and better.

There are added advantages to the N2 system... that is why it is prefered by some in the paintball scene. Cost is a restricting factor though.

[nbk2000]

I was walking outside tonight when I passed by a car lot...all that fragile glass...thin sheetmetal... <img src="http://www.roguesci.org/ubb/icons/icon23.gif" alt=" - " />

Stores, churches, plenty of places have fragile glass. I could even envison a terrorist in one of those fancy motel atreiums (SP?) that has the glass ceilings several storys overhead. <img border="0" title="" alt="[Wink]" src="wink.gif" /> Darn it, didn't they install shatterproof glass before the cubscouts convention? :D

[piggarro99]

There is only one way to find out nbk...

[nbk2000]

Another idea that came to me would be the usefulness of something that's dangerous, silent, fairly cheap, unregulated, uses supercheap ammo, runs off of air, and can maintain a high rate of fire for long period of time.

Remember the sentry guns in the movie Aliens? The tings were just blasting away at anything that moved. Well, while that'd be neat to have, it'd also be very expensive to build.

The idea is to have on of the "strafer" models hooked up to what would be a very simple oscillating device that would sweep it back and forth within a set arc at a rapid pace.

A car battery powers a small compressor which keeps a tank topped off with compressed air. A simple passive IR motion detector turns the device on, causing it to sweep a hallway or such with a constant stream of high velocity #4 buckshot (BB's). Once movement stops, it stops, recharging its air tank.

It'd be fairly cheap to build, could stop any immediate persuit till some kind of shielding was found (like a table or such), and wouldn't draw any more attention to you like full-auto fire would. :)

Of course, we include the obligatory self-destruct to take out the brave soul who charges the sentry gun from behind a shield.

Considering how the things fire 6,000RPM, and 5,000 BB's costs only $6, you could maintain a 10 minute stream of fire for only $60+another $400 for the gun setup.

[Agent Blak]

I wouldn't bother with the compressor. Add unreqired expense.

If I were to set up a Sentry gun using Pneumatic power I would use one of the small CO2 tanks for fountain machines(Only a $50 deposit; If you know someone that works in a resteraunt, he may get you one for a case of beer or a bottle of Rye). Those would have more than enough Gas to power 10 min of constant fire; plus when you set off the self destruction mech(LSC directed at the tank)... well damn.

$10 for a motion snensor
$20 for the Rye to get the tank
$400 for the set up(Solidnoid, gun, etc.)
$60 for rounds
$5 for Power supply(Battery)
$5 for the self destruction system

A sentry gun to hold off the swat team, while you prepare...
priceless. :cool:

[PYRO500]

I think if sustained fire is your thing than CO2 is not an ideal gas. For one it looses alot of it's expandability when it gets cold from repeated firing and the tank freezes up. I'd go with compresses air or something. Possibly from a regulated scuba tank.

[Anthony]

Liquifiable gases like CO2 have a huge advantage over other gases, like compressed air when it comes to cramming a lot of it into a tank.

Plus if the gun is designed to run off of unregulated CO2, then using HPA or nitrogen is going to require a regulator (added expense, might restrict flow).

I'd be easy to have a $15 electric fan heater blow over the CO2 bottle, activated by a relay when the gun starts firing.

[PYRO500]

I think that to heat the entire bottle of CO2 to keep it from freezing you'd need more than just a fan and heater, more like a 500W electric wrap around heater.

[nbk2000]

Hence the compressor and reservior air tank.

Now, another idea that came to me was that fact the BB's are round (duh!), and round projectiles can go around curves, just like a bowling ball.

Well, if you attached a curved tube, I don't see why you couldn't have the sentry planted behind a corner, with just the snout of the curved barrel poking around to blast the hallway.

This would protect the machine from being shot or otherwise damaged for greater effectiveness.

Also, using the same idea of a curved barrel, would it not be possible to have a small "bump" on the top of a car that was the outlet for a curved barrel? This bump would rotate at high speed, spraying the BB's in a full circle around your vehicle. This would serve to repel nearby attackers, whether street thugs, or surrounding cops.

It wouldn't kill them, but the fact that they're catching lead in their face, eyes, and throat would make for a hell of a distraction! <img border="0" title="" alt="[Wink]" src="wink.gif" />

Anyone within 15 yards is going to have a bad time of it if they're standing. And if they squat down below the line of fire, they're now greatly restricted in their mobility.

Naturally the bump could be aimed to concentrate the shot at a specific target. To the rear to shatter persuing car windows, or distract approaching bacon. To the sides for those annoying people trying to cut you off. Or to the front to repel those mangy street beggars who want to "wash" your window with their urine.

Boy, I could build a whole business on the "products" I've come up with. Unfortunately I think I'd be arrested within the first week for selling them. Damn those pesky consumer safety laws! :mad:

[MoToMaStR]

I think what hes trying to get across is,... if your ripping 20 rounds per second on your C°2 tank, just like a paintball gun, youll get loads of velocity drop, which kills your range, accuracry and consistancy, and will freeze your seals, hoses, gaskets and put ice crystals through your gun, and barrel. just like in paintball, if your serious about your game, go nitro. C°2 sucks. yeah, you can get more shots per tank fill, but the shots are lousy and inconsistant. go to a pawn shop and see if you can snag scuba gear, (the tank) most likely it will need to be hydro'd soon, but who gives a shit right?

[Aaron-V2.0]

So has anyone even bothered to try making their own BB Machinegun styled after the Strafer yet? Since there's nothing here I'm guessing no, thus I'm proud to announce that I've built one that works damn well. It's not at the Strafer level yet but I'm still working on it, it fires around 15-20 RPS at 300 FPS @ 125PSI. The gun is built from PVC parts, a 1" Tee is layed flat and from the Tee section there's a vertical BB hopper and in the fitting between the Tee and the upright elbow is a half circle of 1" dowel which keep the BB's level in the firing chamber at half the height of the Tee. A barrel is fit within a 1/8" NPT close nipple and threaded into an inverted 3/4" cap in one end of the straight through section of the Tee and the same is done on the other end only it's a blowgun hooked to your compressor.

I'll have some pictures soon along with a technical drawing.

The gun gets 300 FPS with an 18" barrel, I tried a 36" barrel and noted a much higher velocity so my plans are now for a 36" barreled gun and a blowgun/trigger rated for 232 PSI that will be hooked to some old scube tanks I got from a friend.

[NickSG]

Im guessing none of you ever shot at a car, whether it be the windshield or door. Ill tell you right now it is LOUD. A lead pellet @ 650 PFS makes a (very loud) thud when it hits a car door, and even when hitting the thick windshield it still makes a pretty loud noise, although it is usually hard to recognize as glass getting hit. CO2 guns arent all that quiet either. My P-23 is uncomfortable to shoot indoors without hearing protection, and my friends reported that they could hear me shooting inside my garage from all the way across the street, at least 25 yards away.

If I ever wanted to do that kind of damage, a semiauto converted fullyauto .22LR pistol with some kind of suppresor would do many times better.

Firing a bb gun at trained professionals wearing bullet resistant body armor! LOL!

[xyz]

NickSG, it is not designed to be deadly against SWAT style armour, it is only designed to be unpleasant enough that they will not enter the hallway where it has been deployed on an automatic turret like NBK said.

[FragmentedSanity]

Aaron-V2.0 - Thats a pretty nifty idea, I cant wait to see the pics and the drawings - I dont spose you could manage a short vid of it firing? Some pic's of damage would be nice too :)
Could you describe the BB hopper? - is it just a lenght of PVC that fits in the T section with a removeable cap that uses gravity to feed the BBs into the barrel? - Im assuming that the hopper would need to withstand the 125 psi, or am I missing something?
Do you have any problems with the ammo feed - like jams or irregular rates of fire?
I spose I'll have to wait for the pics - But Im keen to hear more about this one... It all just seems too easy, or maybe thats just wishful thinking :p
Anyway - good work, keep us posted.

[Aaron-V2.0]

Sorry FragmentedSanity, it is that easy! :D

The gun has proven to be very reliable and as long as you can pump air in it will rarely jam. And any jam is fixed by a little shake. The longer the barrel the higher velocity on the BBs and the way the BB's flow into the barrel a higher pressure source would increase both the Rate Of Fire and the FPS of the BBs.

Pictures at http://aaronewf.tripod.com

I'm going to do a technical drawing tomorrow.

EDIT: An explanation of the photos...

The first shows the gun in it's whole, the BB hopper is not directly above the firing chamber but it's offset. If you set a Tee down where all the sockets lay flat and put an elbow into the offset T section facing upward and build your hopper off that.

The only technical part is the BB level adjuster. You take a 1" dowel and cut it 1" long and so it's a half circle like a D

Now with BBs they will rise only up to the level of the wooden dowel and the rest wont fill the fireing chamber becase of it.

I found this out by making a simple and a last ditch attempt at a BB gun, I took a 6" long piece of 1" PVC with an endcap on it. I then drilled through both sides of where the endcap rested over the pipe and thread a blowgun and the barrel into both. Now it would fire but I would have to manually adjust the level of the BBs so they'd flow out just right. From that I figured out the hopper system with the level adjuster.

Ask any questions, I'm happy to help you guys build these as they're one hell of a toy for $30!

[rubberchiken]

wow, sounds like one hell of a gun for a homemade under 30 bucks, Aaron-V2.0! id be really thankful if you could write up how to build that. airsoft is illgeal over here (in australia) and me and my mates have been looking into smuggling some over. but if you could show me how to make that gun, it would solve all of our problems!

[rubberchiken]

oh yeah, i can give you my email address for the info on how to build that gun if it would help

[Aaron-V2.0]

I'll make the plans public here, I've just been real busy with work.

[sauvin]

A recent trip to the shooting range led to the discovery of the .177 caliber rifle. The rounds it are identical in form and function to the ones used in my Winchster 30-30, with obvious differences in scale and some subtle varations in relative geometry. Although described as a "varmint rifle", its projectiles, according to the apparently knowledgeable clerk explaining it, wouldn't even know they had hit a human body (they would simply pass through without deformation if fired at short range) and have damned flat trajectories for impossibly long distances.

It occurs to me that the modern powder-powered firearm and the modern internal combustion engine share a fundamental principle of operation: the release of large volumes of gasses within very short time frames to propel a projectile, be it the untethered rifle slug or the firmly restrained cylinder piston. The gasses are released by a reaction initiated by spark.

What I am about to propose, in broad concept only, is the possibility of bypassing some of the shortcomings of using the relatively slow decompression of compressed gasses by reacting some gas or set of gasses in a confined area. My first thought would be introducing liquid oxygen into a combustion chamber with subsequent addition of something that reacts hypergolically with it.

It seems to me that such an approach would reduce the need for large containers of compressed gasses. Granted, regulartors and suchlike would still be needed, and the firing chamber itself would likely be radically impacted, probably an adaptation of existing semiautomatic mechanisms. The rate of fire may suffer somewhat BUT I'd expect muzzle velocity to be much higher.

[A-BOMB]

You probably saw a .17cal HRM(HornadyRimfireMagum) or a old .17cal bee or remrocket.

[Anthony]

How is a LOX powered gun going to be more practical than a current cartridge firearm?

[NickSG]

I dont know if hes talking about the .17 HMR or not, but ill tell you right now its not accurate for any than several hundred yards, and it WILL NOT pass through a human. Ive seen the little .17 bullets stop in squirrels.

[Aaron-V2.0]

Ok, my website http://aaronewf.tripod.com now has a quickly drawn picture of the BB gun's firing chamber based in the Tee. Considering the skill levels of the members here you should all be able to make sense of the design. Once you understand it it's so simple, one moving part and it hoses BBs.

[rubberchiken]

i dont see that diagram, aaron V2.0; is there a link from that page?

[Aaron-V2.0]

It's at the bottom of the page.

[rubberchiken]

sorry Aaron, but either your talking about the picture of the hopper, my browser isnt displaying it, or its not on there. have you checked the link?

[Aaron-V2.0]

Right click save target as....

http://aaronewf.tripod.com/images/bbgunschematics.jpg

[Anthony]

It is at the bottom of the page, you're probably viewing an older cached version of the page. Hitting ctrl+F5 should have loaded the new one.

[Jacks Complete]

Nice pictures, Aaron.

What I don't understand is how come no-one here has spotted the really obvious?

Yes, .177 BBs (Ball Bearings, rather than the shot size!) are cheap and plentiful, but they aren't going to do that much damage. How about 6mm BBs (plastic, for airsoft or indoor use), or .38 or .44 steel BB (commonly found for catapults like Black Widows). Yes, they are more expensive, but the muzzle velocity you get is always going to be quite limited, even with air, as the pressure can't go too high with PVC. Hence, use a bigger projectile. You could even use lead (or steel, or whatever) shotgun shot in the various sizes. You can buy that by the 5Kg tub in the UK, and you could find the best trade between air pressure, muzzle vel. and shot size for your personal "toy". .44 or bigger is getting a bit silly, but SG (00 buck) shot size might be a good step up. The sizes are here (http://www.eleyhawkltd.com/Custom.htm) and lead has more inertia than steel.

Oh, and Suavin, using LOX would just be silly. It would probably eat through your gun as it reacted with the Iron in your BBs! Any spark, heater or whatever would react really badly if LOX got on it. Try Liquid Nitrogen (LN) as it is a tenth of the price, and won't react with much, but will still let you get to a serious pressure.

Actually, I think I will start a thread on that...

[Aaron-V2.0]

You could easily make the barrel 6MM and use 6MM steel BBs to get lower velocity, lower range but more impact. A 1/4" is the largest you should go with a blowgun as your trigger as you only have 1/4" of airflow. I've made an upscale version of this gun to fire paintballs and they travel about 100FPS.

Everyone's free to do what they want with the plans, it's just I use them for 4.5MM BBs because here, where I live that's the cheapest bulk ammo. I may go get a 25lb bag of lead shot that's BB sized....

[dana_m_h]

i see what he means by using liquid oxygen. liquid oxygen+gasoline = the absolute biggest boom ever. a couple sticks of tnt perhaps. i cant try it out no access to LOX
___________________________________
"the absolute biggest boom ever"

Yeah shure, let me know when you've experiensed any descent ammount of HE.:rolleyes:

DBSP..

[dana_m_h]

anyone in the us with $200 burning a hole they should check here: http://www.sportsmansguide.com/cb/cb.asp?a=91887 this would be nice if it ran on a 9 or maybe 12 oz tank but who cares it would be fun to have anyway

[Jacks Complete]

For $200 dollars, it's a waste of time.

It shoots up to 600 rpm, but only holds 30 BB, and the gas is good for "up to" 60 shots?

So you get a gun that empties in 5 seconds, and after one mag change you have to change the gas cylinder??

Don't know about anyone else, but I think it would be something you used just twice, cos it was neat. Then you would take it back or sell it on as too much pointless hassle.

Oh, and the spare mag is $50!! :eek: :eek:

Try a Mauser barrel (http://www.sportsmansguide.com/cb/cb.asp?bt=C&a=36644) instead. $20.47, and you would probably be entertained for longer. You could use it for one of the other threads in this section, too.

[rubberchiken]

well, ive got most of the parts for my gun (based on aaron's plans), but im having trouble finding suitable pipe for the barrel. i went to bunnings ( dunno whether you other guys outside of australia have this) and i couldnt find it there, which has stumped me; bunnings is like a super-hardware store. any ideas where i could find pipe for the barrel? i'd like it to be about 6mm for use with airsoft BB's

[Jacks Complete]

If you are only using 6mm airsoft, you could probably use a copper pipe from the plumbing section. You could also look in a model shop, as they tend to have small sections of stock pipe, angle, rod, etc. in various short lengths, made from various materials.

You will pay through the nose for it, though, and beware the steel tube, as it tends to have a very obvious weld seam on the inside, which jams your BB big time. I would go for a nice bit of brass, and perhaps sleeve it with the steel if I thought the strength would be needed.

Failing all that, or if you wanted to increase the range somewhat, you could buy an airsoft gun and take the barrel out of it. Get the HOP-UP one, and it spins the BB so that the range is greater, too! (This means you have to install it the right way up, as well as being careful with the projectile weight and velocity, though, so you are probably best to get a none HOP one.)

Edit:
Just a thought/comment: Has anyone else noticed that getting steel tubing is nearly impossible, or is it just the UK? I managed to get some, but it was an 8m length minimum (1 section!) and was about 1.5" in diameter, with a pretty thick wall. More like a scaffolding pole! I cannot find anywhere that stocks or supplies narrower steel pipe.

[Axt]

Yeh, as Jack said hobby shops is where to go for thin Al & brass pipe. dont go to plumbing stores as the small diametre pipe is sold off a roll, which you will never get straight. The brass should be good for a few hundred psi (I use the 1/8" brass in the pengun - guns link in sig).

I couldnt go to anywhere and buy thin steel pipe <8mm off the shelf, and anything stocked is seamed. But you can order nearly anything, at least here in Aus. you will pay for it with about $200AUS for a 8m length (minimum if your ordering!) of 20mm pipe with 9mm seamless bore.

[dana_m_h]

jacks complete in the us you can buy almost any length of pipe in almost any diameter you could probably even order it through www.lowes.com or www.homedepot.com but the shipping charges to the uk would be horrific

axt your jet trike is kick ass howmuch thrust do those pulse jet engines create? and what are the sizes and lengths of pipe in that shotgun pistol? is it on one of these threads? it should be. truely improvised...


(me) "man this schools corn stinks" "it must grow inside the can" (my friend) "it doesnt grow it multiplies" "how often do you see corn multiply?" (me) "how often do you see corn drug and sedate its prey before it eats it?"

something to think about

[Axt]

Theres already threads on both - 12 ga (http://www.roguesci.org/theforum/showthread.php?s=&threadid=575&highlight=screw+action) | Pulse jets (http://www.roguesci.org/theforum/showthread.php?s=&threadid=2181&highlight=pulse+jets)

As for thrust - dont know, havnt found the motivation to finish it . Carry on discussion, if any, in those threads.

[Jacks Complete]

Guess what?

I was at a fair the other day, and there was a stall "Shoot the star out to win!"

Can you guess what you fired your 100 BBs through? It was a BB Machinegun!

The gun was styled very like an old Thompson, and ran off pneumatics.

I so nearly did it on my first go, too. I am so going to make one of these things next week!

Note that the hundred round hopper ran out in about 4-5 seconds of fire. It also means that these things are legal! (in the UK at least)

[NickSG]

Ive seen those before. If you can shoot a small star completely out of a sheet of paper you win a prize. It fires about 25 rounds a second, and when I was a teen I used to hang out there watching people waste their money trying to shoot it out. I did BTW shoot one completely out.

They arent that powerful though. I would guess about 250 FPS.

[dana_m_h]

ive seen those too. they run off an air-compressor and are totally legal they are probably sorta pricy to buy bot with sone ipie and an air-compressor it would be quite easy to make

[xyz]

Please learn to spell check your posts and use capital letter Is when referring to yourself.

The mods are much less likely to ban you if you do this.

[Aaron-V2.0]

Well, I feel like an ass.

I was working with a large group elsewhere solving the Strafer feed system and I never got around to manufacturing one or posting it here for all to see.

So.... here's two pages of home-brewed Strafers, the feed system works, qoutes of 40RPS to 75RPS have been reported and apparently it's a bit of a gas hog compared to the original Strafer, but it works!

http://www.burntlatke.com/bb.html
&
http://www.koolpages.com/potatohell/bbgun.html

Anyway, I plan to make a gun of that design when I get some free time, sorry for the delay in sharing the goodies comrades.

[Beethoven_1983]

I was thinking of buying a replica of a ww2 stengun and cut of the barrel and attach the barrel from my old airrifle (22.), and hope that the 22. hole is sufficient to get the full-auto to function right, and weld an airsoft clip rail magasin to it (300 bullets)....would the power from blankshots drive the bb's in full auto in a good Velocity??

[Jacks Complete]

Beethoven_1983,

sorry, wtf?

For a start, you can't get a 6mm airsoft BB down a 5.5mm .22 rifle barrel. For a second, why waste a good barrel on a toy? Thirdly, being a very loud blank firer, why waste time spitting out a half a dozen low velocity BB's?

Try thinking for a second before posting, eh?