concept for a semi auto rocket/grenade launcher

[crazy white guy]

i was walking through my local hardware store when i came across a box of brass fipe fitting thats looked exactly like large bullet cartridges. That got me thinking about grenade launchers. If you look at the design of the m16's under barrel launcher, you can see that it used grenades that are propelled by a cartridge charge as if they were a bullet.

If a shoulder fired grenade launcher were to use a revolver type feed like the CAW launcher uses, it would be able to fire semi automatically with the same accuracy that a single shot would have. A flaw i can see with my idea is that the launcher would have to have a perfectly balanced and machined feed system or you will blow up your face before you saw that something was wrong. This means that A well made one can be used for quite a while but a one-time-use would take a lot of effort to make.

I cant see any obvious fixes to the chamber/feed balance problem that wouldn't require a CNC or a lathe. If you were to do something as simple as welding six tubes together to make a chamber, it would warp and deform. I was thinking a set of plates could be made that would ensure that the cylinders would hold the shells perfectly in place to be welded or connected in some way.

The shells would have a very simple design. The cartridge would be a simple shell that had all the primers and igniters in it. The rocket/grenade would be the same shape as a normal bullet but with a tail on it that would form into a spiral control device. Another option would be to have no cartridge and have all the propelling charges within the rocket as with the RPG's. The last idea for grenades is to have a cylindrical magazine that has all the shells and grenades in it.

A good scenario for the use of these is if someone were to takeover a building that must be defended, A group of soldiers armed with a few of these weapons and rifles could destroy many soldiers and vehicles without very much cost for heavy weapons.

Do you think that these could be made cheaply and effectively or is it a lost cause?

[Th0r]

May I link you to the thread entitled eBooks on Weaponry?

http://rorta.net/forum/showthread.php?t=1442

This has been done before... Regarding a budget, the question is what is the purpose? Just a bit of fun? Or something else?

You might want to look at a "Spud Gun (http://en.wikipedia.org/wiki/Spud_Gun)" [The cannon not the toy] if it just a bit of fun... If it something else there are eBooks for a reason ;)...

[crazy white guy]

i don't have a purpose for it. I thought of it for a fun idea to try

a situation it might be good for is like

a small group of people take over a building and are being assaulted by police vehicles. You cant take the time to reload while your being shot at so you have your six-shot-launcher to take out two or three cars before they have a chance to advance or your shit

[davey_crockshit]

http://en.wikipedia.org/wiki/Milkor_MGL

like this?

http://en.wikipedia.org/wiki/Pepperbox

this concept solves your chamber/barrel alignment issue but at the cost of greatly increased weight.

illegal as hell, but theoretically possible.

i remember reading the ragnar benson book listed in the other thread. it seemed plausible. the only thing was that his design would not work with military 40mm rounds. those are spin armed, his designs are all smoothbores. there are 37mm flares and smoke shells that are available at least in the u.s. these are legal and these would probably work in a launcher like those described assuming the breech were strong enough. i seem to remember that you are in canada. the laws there might be different. something like this would be big, bright, and loud and would probably attract a lot of attention to say nothing of the massive fire hazard. keep that in mind.

[crazy white guy]

the milkor you posted is almost exactly what i was thinking but with more power and accuracy

[Th0r]

Another thread I dragged out on the topic of 37 Millimetre Grenade Launchers...

I don't know if it is any use but it might be worth a look.

http://rorta.net/forum/showthread.php?t=37

[Micro]

CWG you had just the same idea of a improvised 40mm grenade launcher as I!
Those 40mm pipe stiffeners just look like they ware made to be turned into 40mm HE shells ^___^

[crazy white guy]

yeah. there are a lot of pipe fittings that would work really well for explosives and weaponry. theres a few parts i found that would make a perfect bolt action 30ish mm launcher with only three simple welds and a spring. but it would have to be mounded on a stock, seeing as it will knock you on your ass on a whim.

[Micro]

A 30mm rifle would be a fucking overkill.
Have you read pa lutys home made shotgun ammo book?
In it he uses 20mm plastic pipestiffeners to make improvised 12gauge shells :smile:

theres too much smilies btw

[crazy white guy]

theres no such thing as overkill. unless your hunting hemophiliac babies with autism. then a .57 cal MIGHT be overkill... otherwise no.

and i haven't read it let. i have only gotten through about 20% of his/their books.

I want to make a shotgun/sabot rifle but i have too many projects going on and I often lose sight of them halfway through and waste time and effort. If I stumble upon a massive amount of money/material. then i will probably build all the projects that i want to do. Like my dad's 'recoil displacement engine' and the launcher, and the, gauss gun that -=HeX=- is telling me so much about (on rouge sci.) and i still want to build a go-kart out of that 11hp engine that my toolbox is sitting on.

i should probably make a list of all the projects i have gave up one day. It would be interesting

[Micro]

Hah, CWG you are not the only one with projects hallfway done.
ATM I have two pistol projects (.22 and .27) two smg projects, three or more radio transmitters (AM,CW & FM) and the list goes on and on.
I also think that my father found my unfinished .22 and threw it a away :(
I already had the reciver, barrel and bolt made.
Lately my parents have been scooping trough my projects and parts a bit too often.
I wonder if they have found some thing...

[crazy white guy]

yeah.. my mum finds a lot of my stuff. i had a bunch of lab ware that she 'accidentally' smashed beyond repair while vacuuming. I got most of it for free but it would have cost about 250$ to buy it all brand new. not counting home-made apparatus's(whats the plural?). And my dad always goes into my room at the worst time to find my brand new box of .45's and primers. and he found my inside out pipe and now its sitting in the garage where he always knows where it is.

[UKSWAT]

Apparatus is a plural noun in its self.

You should feel happy that you can get primers in the first place, in the UK we don't have Wal Mart to sell them. I've been looking into making a small launcher capable of firing smoke shells, effects shells, flares etc. Just for fun, nothing malicious.

I'm good at design (and am taking an A level in resistant materials) so a trigger system wouldn't be hard to make, I have a good amount of experience in shells and mortars from my pyrotechnical background so the only problem is primers...

I'm reluctant of making my own due to obvious reasons.

[raiden654]

i'm sure ragnar bensens got a book on this somewhere now finding it is another story.

[.VX]

I think Th0r uploaded it to 4shared under the name jack21stsmith@yahoo.co.uk, or something along those lines.

[hamster]

a small group of people take over a building and are being assaulted by police vehicles. You cant take the time to reload while your being shot at so you have your six-shot-launcher to take out two or three cars before they have a chance to advance or your shit

I think what you are mentioning is a concept of an AGS grenade launcher

http://img171.imageshack.us/img171/2691/ags172bq2.jpg (http://imageshack.us)
http://img171.imageshack.us/img171/2691/ (http://g.imageshack.us/g.php?h=&i=ags172bq2.jpg)

Blow back operated, semi automatic, effective up to 800 meters with 1400 being max range.
Simple construction, and a low weight of only 20lbs plus tripod and ammo, it would be alot easier to construct then some of the fail prone hand held models.

http://www.youtube.com/watch?v=QK0pHsoZXug
enjoy

you can barely make out the simple construction here

http://img516.imageshack.us/img516/5619/ags17ks1.gif (http://imageshack.us)
http://img516.imageshack.us/img516/5619/ags17ks1.e28218a686.jpg (http://g.imageshack.us/g.php?h=516&i=ags17ks1.gif)

[Th0r]

I think Th0r uploaded it to 4shared under the name jack21stsmith@yahoo.co.uk, or something along those lines.

It's Jack21stSmith@Yahoo.Com, bear in mind that Jack Smith is simply an Alias and the 21st Originates from the 21St Regiment of the SAS. I have my own, personal eMail that I would not associate with my 4Shared Folder, firstly for Copyright Reasons and Secondly because of the Big Brother Style Government that runs my country and their disapproval of my taste in literature.

http://www.4shared.com/dir/5507036/41715ad8/sharing.html

[crazy white guy]

All the good ideas are allready done eh?

I think I should have spent more time searching. The only places I reall looked were the world guns.russia and the bigger databases.