I'm making a grenade launcher and need help

[A-BOMB]

Hello this is A-BOMB and I'm makeing a 37/40mm grenade launcher and
need some help with the specsfics. Now I have a 1.5" steel pipe that I've reamed out to 1.575 inches which is 40mm. Now is I need the help what are the outside dimenstions of a 40x46mm case?
Now onto the action I'm thinking of a sharps rifle(dropping block) type action or a hinge type action. And anyone know where I can pick
up some empties in the Pittsburgh PA area? or close to it?

[nbk2000]

Pick up a copy of "Shotgun News" at the magazine rack or gunshop. Inside you'll find ads for nylon 40mm cases for $1 each in lots of 50 or more.

I'd think a copy of the small arms ammo PDF, volume two (which I provided) would provide the answer for case size. It's on the FTP.

BTW, 40mm is prohibited for civilian possession in the US. But 37mm is fine.

Are you planning on rifling the barrel?

[EP]

40mm is illegal but 37mm is ok? That seems a bit ridiculous. Any idea why? Maybe so civilians can't use the military ammo?

[A-BOMB]

Well its 40mm for right now because I would need a barrel smaller that what I have for a 37mm(1.46") And now I think rifling the barrel would be to hard but I see about it. And I can't ever find a copy of "shotgun news" but "special weapons" and "solder of forture" are easy.

[nbk2000]

Here, I'll make it easy for you:

<a href="http://www.shotgunnews.com/gunad/adinfo2.dog?nclass=S5800" target="_blank">"Reloading Supplies" at shotgunnews.com</a>

Paper is so 20th century anyways. :p

EP, that's EXACTLY why you can't own 40mm without a BATF DD permit.

<small>[ March 21, 2002, 01:33 AM: Message edited by: nbk2000 ]</small>

[A-BOMB]

Would it be a DD if I made it so it couldn't take a standard lenght military 40mm round, like I make the chamber only 40mm instead of the standard 46mm? So a military round wouldn't fit in the chamber.

[nbk2000]

It's not the length, it's the caliber, that ATF would arrest you for.

Download the PDF called "consequences" from the FTP. It's a good read, and explains what kind of people ATF is.

[RTC]

It's seem's pretty pathtic to be arrested over 3mm's!

[nbk2000]

The ATF executed (no other way to describe it) Randy Weavers dog, son, wife, and best friend over a shotgun barrel that was cut a half inch (1/2"!) under the 18" limit. And this was at the behest of an ATF informant who paid Weaver $200 to do it. Mind you, the guy kept refusing to do it, but financial pressures and lack of food for the family compelled him to do it.

Set up all the way.

So rest assured that 3mm difference WILL get you locked up. Read the book, it's just the tip of the iceburg.

[ENGINEERKILLER]

Keep in mind if you wind up with your ass in court your gonna be judged by people who haven't the slightest clue about weapons ,legal or illegal the only thing they are gonna know are the words "grenade launcher".I have seen more than one person get sent up the river because of jhon Q publics fear of the unknown.

[A-BOMB]

Damn now I have to get another barrel! DAMN YOU ATF! Now, thats out
of my system, now I have to get a new piece of stock and find someone
to drill it out to 37mm or I could just put a 37mm liner in the barrel I already have.

[Xtramad]

<a href="http://37mm.com/" target="_blank">All you need to know and much more</a>

[Madog555]

A-Bomb, why do you care, just make it 40mm. you didn't do anything wrong unless you got caught

[A-BOMB]

Xtramad, I already got that site booked marked, and now that I think of it who cares about the ATF. And I think I'll some drawings of what it's going to look like by monday or so.

[A-BOMB]

Well I'm very ticked becauce I was looking at the inside of my barrel and notice that it is off center nere the chamber and that won't allow me to use it :mad: and the machine shop won't give me a refund :mad: . Well now I making a 38.1 mm one that just uses 1.5" copper pipe and fittings, so any one here should be able to build one from just one trip to lowe's or truevalue. This is how the barrel should look (I know this looks crappy)

.........~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~[
..............................------{------------------------======----|---}[
.................................................. ........................................|.....[
.................................................. ............................................)))))) )
.................................................. ........................................|......[
..............................------{------------------------======----|---}[
.........~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~[

"~" is ABS pipe in 1.5"

"-" is 1.5" copper pipe

"=" is a 1.5" copper coupling

"|" Is a washer that fits in the 1.5" pipe

"[" is a washer glued to the washer that fits inside the pipe

"(" is a #209 shotshell primer

For get the periods their there to keep it all in place.

Now that you seen this schetch, heres my Idea the barrel and all the shells are made of 1.5" copper pipe and are connected together by a 1.5" coupler that had the nibs inside sanded out. Now you need two washers one that fits in the pipe and another that is large anothe as to make a rim around the out side of the shell, both of these shells need to be able to fit a #209 shotshell primer. Now this hole barrel is put into a peice of 1.5" ABS pipe that has been carved out or sanded to fit the 1.5" copper barrel/coupler/shellthing in.

So what do you guys think of my idea?

And Xtramad, didn't you have more pic and plans in this topic? or did you start another one? <a href="http://www.roguesci.org/cgi-bin/ewforum/ultimatebb.cgi?ubb=get_topic;f=4;t=000329" target="_blank">This topic here.</a>

<small>[ March 31, 2002, 11:40 PM: Message edited by: A-BOMB ]</small>

[BoB-]

I dont mean this as an insult, but it takes less than an hour to draw something in paint, compress it, then upload it to a webpage. I've been a member here for a few years and I have never ever understood an ascii drawing.

[A-BOMB]

Well sorry BOB for the asci drawing, because I had drawn up some in paint but the FTP woulfn't allow me to conncet right then so I'll try late to link that one here instead. And that 40 mm Barrel has me so mad too I paid 20 dollars just for the steel rod stock, and another 15 for them to drill it out for me :mad: . And for any one in Ambridge(15003 zip) Pennsylvainia area (a old steel mill town 15 miles south Pittsburgh, at least I think its south could be wrong.)
Well I was down there seeing some reletives on saturday and found this cool gunshop out on the edge of town, they are really well stocked with m-16's, any type of AK (sks,ak-47,ak-74,akm, ak-94 anything) and they have 40mm and 37mm nylon cases and a few alunium case too I think? and They just in one of those new AR-150's in .50 BMG, they also sell 50 bmg ball and traser(are traser the ones with the red painted tip?) and 5.45x39, 7.62x39 and they gas masks anying under the sun if your close to them got take alook.
Oh heres the directions get one to DUSS ave. and go down it you should pass their highschool, then a old steel mill, then after that a dairy mart, and keep on going you will see on the left you should see Waste Managment of Pittsbugh then a (all of these first things are all on the left) then alittle past that on the right you will see Micheals bar then a intersection and right past the intersection you will see "GUZCKS gunstore and locksmiths" they are open from 1PM to 5PM everyday (i guess) and if you see a "jubleie" grocery store on the right you have gone to far.

[RTC]

Use <a href="http://www.mapblast.com/">MapBlast</a> Input the address/postal number of where it is, and where your coming from and it'll give you step by step direction's and a map too, and it's free!

[Ctrl_C]

A-BOMB, when you make this, I wanna get together and see it. Whaddaya think? :)

[A-BOMB]

Good lord! I have to save you from yourself.

NEVER post your real name, face, address, phone number, or any other personal identifying information on the internet.

EVER!

And certainly not maps pointing straight to your house.

:rolleyes:

Can you say "Jack Boot Thugs, please come raid up so we can be Tyrone's and Bubba's bitches."?

That why God invented e-mail. Use it.

<small>[ April 01, 2002, 05:42 PM: Message edited by: nbk2000 ]</small>

[A-BOMB]

NBK, it wasn't my house it was a map to a gun store I just found a few days ago when I was out visiting relitives, and by the way I don't every live it that town or county. And NBK why did you think it was a map to my house? its a map to a gunstore/locksmiths. So heres the map to Guzycks supply store.

<img src="ftp://ewf:df447jh4@209.195.155.80/-=Uploads=-/Linked%20Pictures/mapimage.gif" alt="" />



<img src="ftp://ewf:df447jh4@209.195.155.80/-=Uploads=-/Linked%20Pictures/mapimage%202.gif" alt="" />

<img src="ftp://ewf:df447jh4@209.195.155.80/-=Uploads=-/Linked%20Pictures/mapimage%203.gif" alt="" />

<small>[ April 01, 2002, 10:21 PM: Message edited by: A-BOMB ]</small>

[nbk2000]

Last I saw this topic I see ctrl_c saying "lets get together" and then you've got maps posted. Natural (if erroneous) assumption on my part.

And it's better to err on the side of caution, now isn't it?

And while I've got your attention, why do you say in some of your posts "Hello this is A-BOMB ..."? It's pretty obvious who it is, isn't it? :D

I take it your barrel was turned to 37mm? Perhaps the machinist fucked it up on purpose, knowing it's probably end use? Wouldn't be surprising.

[Arkangel]

Browsing a link from NBK, I came across this:

<a href="http://www.pop-inc.com/POP_Cat_Pg23.html" target="_blank">http://www.pop-inc.com/POP_Cat_Pg23.html</a>

Don't know if this fits the bill, but I have to say it looks a whole load cheaper, and much easier to conceal than a dedicated 40mm launcher. An uneducated porker is not going to look twice at something like this in a load of junk in your garage, and for that matter, the bits of a slam bang you made at the same time.

[A-BOMB]

Well I started to design and get parts but have no real time to start get in it working but I did have time to make this animation of how the action on the launcher will work, there are 2 versions fast and slow.

fast version (http://briefcase.yahoo.com/bc/a_bomb_the_forum/vwp?.dir=/My+Documents&.dnm=grenade+launcher+animation+by+A-BOMB.gif&.src=bc&.view=l&.done=http%3a//briefcase.yahoo.com/bc/a_bom b_the_forum/lst%3f%26.dir=/My%2bDocuments%26.src=bc%26.view=l)

slow version (http://briefcase.yahoo.com/bc/a_bomb_the_forum/vwp?.dir=/My+Documents&.dnm=grenade+launcher+animation+(slow)by+A-BOMB+.gif&.src=bc&.view=l&.done=http%3a//briefcase.yahoo.com/b c/a_bomb_the_forum/lst%3f%26.dir=/My%2bDocuments%26.src=bc%26.view=l)

And this is a 20gauge idea demostartor that I built.

http://briefcase.yahoo.com/bc/a_bomb_the_forum/vwp?.dir=/My+Documents&.dnm=Picture+46.jpg&.src=bc&.view=l&.done=http%3a//briefcase.yahoo.com/bc/a_bomb_the_forum/lst%3f%26.dir= /My%2bDocuments%26.src=bc%26.view=l

[James]

IIRC, people were having trouble accessing files from NBKs Yahoo briefcase. I think Yahoo implemented a new security "feature", breaking access to briefcase contents.

[nbk2000]

What's happened is that Yahoo! has gone punk on us!

They're new thing is to make it so you have to pay for their "Premium Service" if you want to make your briefcase publicly accessible.

They probably did this because of all the porn movie swappers using the yahoo briefcase for posting their movie series.

Anyways, I'm no longer posting files to the briefcase anyways. All those files and more will be on the DVD.

A-bomb, you'll just have to upload it to the ftp once that's up again.

[A-BOMB]

Thanks NBK, I didn't know that. And is the FTP still down?

[nbk2000]

It's down till we sort out the problem of leeches and passwords.

[A-BOMB]

Well I have amassed the part and already started to build my launcher and it should be done by the end of this month. Its going to be a 40mm, and its going to look like shit(that happens when you put it together from bits and peices of this and that(rattraps,clocks and paintballguns). So as soon as I get some of it done I post some pics of what I have done.