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Anti Elephant Airsoft Rifle

Built a pneumatic cannon? Then post it here! This section is for completed, finished cannons that you have built. Please include pictures and information.
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Unread postAuthor: mopherman » Sun Nov 04, 2007 7:46 pm

Ragnarok wrote:Quite nice work, but "Anti-elephant" & "Airsoft" do not belong in the same sentence, unless it is one like this one telling you that they don't go together.

@mopherman: Do not try and bend the spoon. That's impossible. Instead... only try to realize the truth. There is no spoon. Then you'll see, that it is not the spoon that bends, it is only yourself.


yeah, i guess i got a little carried away. but did he do somthing to the pipe that let him make a square out of threaded pipe? I just cant see
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Unread postAuthor: DYI » Sun Nov 04, 2007 7:46 pm

Code: Select all
Quite nice work, but "Anti-elephant" & "Airsoft" do not belong in the same sentence, unless it is one like this one telling you that they don't go together.

[quote]

I was thinking just the same thing, but hey, maybe if you got a buckshot of 1000 of them going about 5 km/s... But these things fired out of anything less than a LGG won't be taking out elephants.[/quote]
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Unread postAuthor: ammosmoke » Sun Nov 04, 2007 7:50 pm

mopherman wrote:
Ragnarok wrote:Quite nice work, but "Anti-elephant" & "Airsoft" do not belong in the same sentence, unless it is one like this one telling you that they don't go together.

@mopherman: Do not try and bend the spoon. That's impossible. Instead... only try to realize the truth. There is no spoon. Then you'll see, that it is not the spoon that bends, it is only yourself.


yeah, i guess i got a little carried away. but did he do somthing to the pipe that let him make a square out of threaded pipe? I just cant see


LOL, weirdo spawn child of the oracle ftw. Neo, you must believe that you are the chosen one, or you will die in vain. :lol: :lol: :lol: :lol:
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Unread postAuthor: DYI » Sun Nov 04, 2007 7:55 pm

Something weird happened to my above post, I was trying to quote Rag, but it went all green and says it's code. Must be something to do with that threaded-elbow-square that bends the fabric of space-time around itself... :lol:
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Unread postAuthor: ammosmoke » Sun Nov 04, 2007 8:20 pm

ROFL!!! BTW, this really doesn't look like an airsoft gun to me... It looks more like a 6mm spudgun. There is no way you could use this in a airsoft war with having to dig it out of the person's skin.
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Unread postAuthor: Hawkeye » Sun Nov 04, 2007 8:26 pm

Rag, How about A.E.A? Are you happy now?
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Unread postAuthor: jackssmirkingrevenge » Mon Nov 05, 2007 2:34 am

DYI wrote:I was thinking just the same thing, but hey, maybe if you got a buckshot of 1000 of them going about 5 km/s... But these things fired out of anything less than a LGG won't be taking out elephants.


According to this article the Israelis are using 22LR bullets in a sabot fired by the 50 calibre M82 at an estimated mach 5. I doubt how true this is, however it makes you wonder, what sort of velocity you'd get from a 0.25 gram BB in that scenario... it would certainly take out an elephant at close range if hit in the right place.
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Unread postAuthor: Mitchza89 » Mon Nov 05, 2007 9:54 pm

Do how my mate managed to make the chamber all square concidering the thread only runs one way....well when he first did it, I was scatching my head but then he told me. He just screwed it in all way on one side, and then turned it half out, which turned it half in on the other side. He's a cluey bloke ol' Mick :D.


Oh and it's only called an elephant gun because well......it's a friggen long heavy gun :D
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Unread postAuthor: Zen/// » Mon Nov 05, 2007 10:44 pm

jackssmirkingrevenge wrote:
DYI wrote:I was thinking just the same thing, but hey, maybe if you got a buckshot of 1000 of them going about 5 km/s... But these things fired out of anything less than a LGG won't be taking out elephants.


According to this article the Israelis are using 22LR bullets in a sabot fired by the 50 calibre M82 at an estimated mach 5. I doubt how true this is, however it makes you wonder, what sort of velocity you'd get from a 0.25 gram BB in that scenario... it would certainly take out an elephant at close range if hit in the right place.


Um...... It sounds like It could be real but it sounds sorta like "The Jews are evil" propaganda.

And please delete your double post Mitchza89.
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Unread postAuthor: Lentamentalisk » Tue Nov 06, 2007 12:18 am

How accurate is it?

Mitchza89 wrote:Because of the suppressor on it, extremely.


How does a suppressor make it accurate? I thought they made it quieter, not more accurate.
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Unread postAuthor: jackssmirkingrevenge » Tue Nov 06, 2007 1:42 am

How does a suppressor make it accurate? I thought they made it quieter, not more accurate


there are muzzle devices for air rifles called "air strippers" that look something like this:

Image

The idea is to "strip away" the muzzle blast of air in order not to destabilise the projectile as it leaves the muzzle. Technically, a silencer fulfills this function as it's dispersing the propelling gas before it leaves the muzzle.

The effect is noticeable on commercially made airguns, though how much of a difference it would make on a homemade BB gun is debatable.
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Unread postAuthor: Mitchza89 » Tue Nov 06, 2007 1:58 am

I reckon alot of the accuraccy a homemade bb would have would depends alot on the weight of the projectile and well.....most people know that. I'd like to find out what a good weight for a 6 or 8mm bb is. It's hard to get a good combo of weight and speed, something heavy enough to have good penetration and stability in the air and good velocity. You generally can't have one or the other with homemade guns that have a budget. I'd rather weight over speed any day though. Example.... A basket ball is throw at you at 30 kilometers an hour. Pretty easy to catch.....But try catching a bowling ball going at 20 k's an hour....it's gonna leave a bruise.
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Unread postAuthor: jackssmirkingrevenge » Tue Nov 06, 2007 2:03 am

A light projectile will give you good velocity but poor sectional density (assuming full calibre) so it will lose speed quickly through the air and start dropping exponentially the further it travels. A heavy projectile from the same launcher will travel slower to being with but tend to maintain that velocity for longer.

The ideal is low weight but high sectional density, like a nail in a sabot - you get good acceleration and it cuts easily through the air. The downside is that saboted and finned projectiles are difficult to fire accurately, especially if not properly machined.
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Unread postAuthor: Mitchza89 » Tue Nov 06, 2007 2:17 am

I used to make alot of darts because I used to be a blowgun enthusiest. I used to make em out of nails, paper and super glue, if not...a bbq squre coated in superglue for strength. These darts used to be good but they were a bit time consuming to make, and if you hit something hard, they would compact and/or shatter.

I saw a spudder on here make a stabliser out of milk bottle plastic. He said he got the design from someone else. Anyone else know?
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Unread postAuthor: jackssmirkingrevenge » Tue Nov 06, 2007 2:35 am

I had made a jig for making nail darts by cutting off the flat head then epoxying on 3 plywood fins that made it the same diameter as the barrel - similar to this russian BM-42 round:

Image

The difference is that I made the fins wider so it didn't need the central support, so all I had to add to fire was a foam disk (which separated on firing) to seal the base. i used araldite to glue on the fins - and there you have it, APFSDS :D
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