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Boosting pellet rifle performance

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Boosting pellet rifle performance

Unread postAuthor: CpTn_lAw » Thu Mar 29, 2007 12:05 pm

Hey everybody! i've came up with something interesting this afternoon, i was playing with my air-rifle, when i has a sudden idea...I put one drop (really tiny drop) of zippo fuel behing the pellet just before closing the barrel. When i shot......well, the zippo fuel had vaporised and was a gaz, mixed with the internal air, with the diesel effet, a very loud bang occured, a small flame, and a pretty hard kick for an air rifle. The pellet went through 3cm of wood. I think i just made my air-rifle a rifle-like hybrid.
When looking at the physic behinf this phenomenon, i used the P.V= n.R.T
the pressure increases, the volume dicreases, and the temperature increases very quick, so, the air/fuel mix auto-ignited. I cheack the piston, it has not sign of stress; compared to dieseling with oil.
I also made a small test with potassium benzoate, but this is against the rules. (whistling mixture for small rocket-fireworks.)

So if you guys wana try it, i suggest a low powered piston air rifle, one tiny drop of zippo fuel behind the pellet, close the barrel, wait a few second for the fuel to vaporise, and shoot.
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Unread postAuthor: jackssmirkingrevenge » Thu Mar 29, 2007 1:09 pm

The ignition of lubricant vapours is a significant contributor to the power of a spring piston air rifle, but to encourage this effect simply increases the wear and tear and very quickly knacker your piston seal. Ok if you have some $5 chinese rifle I suppose, personally i wouldn't dream of doing that to my beloved Weihrauch :shock:
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Unread postAuthor: FeLeX » Thu Mar 29, 2007 1:16 pm

is your rifle spring loaded? Do you think one of those cheap plastic pistols would work?
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Unread postAuthor: jackssmirkingrevenge » Thu Mar 29, 2007 1:19 pm

Don't expect detonation in an airsoft pistol, I doubt the spring in one of those has enough clout to produce dieseling. With one of these little things it should work wonderfully, you can try using a drop of actual diesel or 3-in-1 lubricating oil.
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Last edited by jackssmirkingrevenge on Thu Mar 29, 2007 1:25 pm, edited 1 time in total.
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Unread postAuthor: FeLeX » Thu Mar 29, 2007 1:21 pm

That link didnt work man =/
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Unread postAuthor: jackssmirkingrevenge » Thu Mar 29, 2007 1:26 pm

letterbocks. try again.
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Unread postAuthor: FeLeX » Thu Mar 29, 2007 1:32 pm

Now the pic itself dont work =/
Oh well you think I could find some sturdy spring and make my own gun that would work on this principle? Oh and is it any powerful?
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Unread postAuthor: beebs111 » Thu Mar 29, 2007 1:54 pm

so this is a method to increase the power of a pellet gun....... hmm sounds cool
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Unread postAuthor: jackssmirkingrevenge » Thu Mar 29, 2007 1:55 pm

Odd, works for me.

anyway, not worth the hassle of building your own, just buy something cheap like one of these and when it falls apart from the strain, buy another one :D
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Unread postAuthor: CpTn_lAw » Thu Mar 29, 2007 2:09 pm

yeah well, i've tested the potassium benzoate and it pushes the pellet up to 400 m/s..........lol
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Unread postAuthor: Brian the brain » Thu Mar 29, 2007 3:22 pm

I was gonna suggest a drop of pure ether untill I read the 400m/s thing...
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Gun Freak wrote:
Oh my friggin god stop being so awesome, that thing is pure kick ass. Most innovative and creative pneumatic that the files have ever come by!

Can't ask for a better compliment!!
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Unread postAuthor: jackssmirkingrevenge » Thu Mar 29, 2007 5:29 pm

Brian the brain wrote:I was gonna suggest a drop of pure ether untill I read the 400m/s thing...


Don't forget the Weihrauch Barakuda EL54 ether-injection air rifle :wink:
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Unread postAuthor: FeLeX » Thu Mar 29, 2007 6:23 pm

So I mean is it really worth it? On avera by how much fps can it be increased? Could this be used to make a unique mini hybrid?
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Unread postAuthor: jackssmirkingrevenge » Thu Mar 29, 2007 10:40 pm

You could try adding a bust-disc to the system, who knows the pressure generated by the detonation might even drive the piston back far enough to recock itself :roll:
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Unread postAuthor: Brian the brain » Thu Mar 29, 2007 11:21 pm

An air driven piston would work.
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Gun Freak wrote:
Oh my friggin god stop being so awesome, that thing is pure kick ass. Most innovative and creative pneumatic that the files have ever come by!

Can't ask for a better compliment!!
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