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Homemade Pipe Shotgun

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This topic was originally posted in this forum: Improvised Weapons

Author	Topic: Homemade Pipe Shotgun
nbk2000 Moderator	posted December 31, 1999 05:22 AM Here's a photo of a pipe shotgun I've made for Y2K. It cost about $15 to make. The barrel is a 12" x 3/4" pipe with the threaded section cut off of one end. The shell goes in that end. Then that end is placed inside of a 6" x 1" section of pipe with a 1" endcap on it. A firing pin made from a bolt is centered in the cap. When you wish to fire the shotgun, just pull back hard on the handle. After the shot, pull out the shell. It's important that you have a cap on the pipe handle, otherwise hot gases from the shell will burn your hand. I would also highly recommend wearing gloves when firing. Recoils a motherfucker. A thick board tucked in the front of your pants with the endcap resting on it makes for an excellent recoil absorber. ------------------ "The knowledge that they fear is a weapon to be used against them." www.50megs.com/nbk2000
dlwdaw Frequent Poster	posted December 31, 1999 11:55 AM why dont you make another handle so you hold it kind of like a tommy gun so incase you have some unsensitive shells you can slam it harder. ------------------ ~dlwdaw "Tick, tick, tick, tick ...Haa! That fucking shotgun is straight out of Doom" -Eric harris columbine shooting
Ho ju Moderator	posted December 31, 1999 03:16 PM you could make the same thing only out of 20 guage or 410, it would help with the recoil but the power would not be the same. you could mount a thick pad on the back of the cap with the firing pin and place it on your shoulder or hip. that would work well. ------------------ -Knowledge is power, power leads to corruption, corruption is a crime, crime doesn't pay. So if you know to much you will go broke!!!
Feticidal Fantasy Frequent Poster	posted January 01, 2000 02:12 PM Have you ever actually fired this gun? I was told it wouldn't work becasue a shot gun shell creates 50,000 psi and 3/4" steel pipe can only take about 7,000 psi. So it would be VERY dangerous to fire this gun. I would recomend using 20 or 410 gauge insted, since it creates less pressure. ------------------ Feticidal Fantasy- http://www.darksites.com/souls/vampires/feticidal/ "Keep your gun as your constant companion."
Ho ju Moderator	posted January 01, 2000 04:20 PM what is the barrel of a normal 12 guage shotgun made out of? no doubt it is treated but the barrels are not thick at all.. ------------------ -Knowledge is power, power leads to corruption, corruption is a crime, crime doesn't pay. So if you know to much you will go broke!!!
Predator Frequent Poster	posted January 01, 2000 07:22 PM You'd be amazed at what a little heat treatment can do to a metals properties with regards to strength, toughness, hardness, durability, and mallability... As for the chamber pressures, I remember someone correcting me saying that shotgun shells only go up to approximately 10,000 psi, whilst it was rifle rounds that made the 75,000+ psi mark.
nbk2000 Moderator	posted January 01, 2000 07:35 PM Yes I have. I haven't fired a full power load though, just a half powdered load with 1 oz 1/4" ball bearings. I started with just primer, then half powder load (no shot), then full powder load (no shot), then primer only with shot load, then lastly half powder with shot. I could take it to full power, but since this was only intended for room range fighting, I didn't see any need to risk a full power shot. I will make a second handle for the back end next time I'm at my friends shop. I think a piece of rebar welded to the endcap wrapped in tape will work quite nicely. As far as pressure, I have a 1/4" of steel between me and the shell. Plus the pressure is only momentary. Remember that force takes the path of least resistance. And the shell is less than a foot from open air. Certainly this is no more likely to blow up in your hands than any number of explosive devices that the people who frequent this forum make. And it's not intended to be your main battle weapon. It's more like a liberator pistol in being intended for last ditch self-defence and for "upgrading" to a better weapon from a cop or soldier. You could even use this as a non-lethal weapon by using a primer only shell loaded with finely ground black or red pepper powder to dust your target in their face. BTW, how readily available is 20 gauge or .410 shells? Nowhere near as available as 12 gauge. Being a Y2K contingency gun (don't need now, huh?) I had to plan for the possibility of having to trade for ammo. ------------------ "The knowledge that they fear is a weapon to be used against them." www.50megs.com/nbk2000 [This message has been edited by nbk2000 (edited January 01, 2000).]
dlwdaw Frequent Poster	posted January 01, 2000 09:02 PM how many inches is a .410? I have a box that doesnt fit any of our guns... (we thought we had a .410 guage shotgun, but it turned out to be 45-70, and .410 fit, but didnt work..) and any suggestions on maybe a homemade pump .410? ------------------ ~dlwdaw "Tick, tick, tick, tick ...Haa! That fucking shotgun is straight out of Doom" -Eric harris columbine shooting
Blaze Frequent Poster	posted January 06, 2000 04:04 AM It was i who said shotshells run at far less pressure than rifle cartridges.. commonly 7000psi for older and up to 12000 for newer. the difference between .410, 20ga and 12ga in regards to pressure is negligable and can all be treated equally.. its common for .410's to fit and fire in 45/70's (perhaps lever actions will pose a problem) why wont yours fire dlwdaw (and what the fuck does your name mean ). not sure what you mean by the length of .410's but they come in the usual shotshell sizes ie. 2 1/2", 2 3/4" and a lot are now 3" so the pipe shotgun relies on there being enough movement in the thread of the cap to sufficiently dent the primer,, sorta the same principle as the boltbomb on makeshift arsenal.. correct? or does the pin move? [This message has been edited by Blaze (edited January 06, 2000).]
nbk2000 Moderator	posted January 06, 2000 04:47 AM There's a bolt that's centered in the cap. The shell fits in the smaller pipe which is slamed back against the bolt. That's the firing pin. It doesn't move. And if the pressure is the same regardless of the shell size, then small gauge shells like .410 would be more dangerous than a 12 gauge. Smaller pipes are thinner and with less area for the force to be dissipated. ------------------ "The knowledge that they fear is a weapon to be used against them." www.50megs.com/nbk2000
Blaze Frequent Poster	posted January 06, 2000 06:14 AM oh, so the whole barrel moves back... i was thinking just the handle slides back.. wouldnt the barrel tend to want to shoot off? and what stops the cartridge sliding back and jamming it up? or am i just confusing myself and everyone else...
nbk2000 Moderator	posted January 06, 2000 03:02 PM Your just confusing yourself and others. It works, that's all that matter. ------------------ "The knowledge that they fear is a weapon to be used against them." www.50megs.com/nbk2000
Blaze Frequent Poster	posted January 07, 2000 02:43 AM whats more important, knowing that it works or knowing how it works?
VeHeMT Frequent Poster	posted January 08, 2000 05:06 PM Click here: http://members.xoom.com/VeHeMT/pipeshotgun.html for a very simple diagram as to how the pipe shotgun works. Ok, since xoom is a very shitty service concerning external links, you'll have to copy and paste that into a browser. [This message has been edited by VeHeMT (edited January 08, 2000).] [This message has been edited by VeHeMT (edited January 08, 2000).]

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