Dieseling an Air Rifle

GA Firing Line

Sheps

Woodsman
Jun 24, 2015
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So there's this trick. You take a springer air rifle and some oil. WD40, whatever you got laying around. Fill the skirt of the pellet with a little, a drop, less, the trick is to keep it consistent.

Anywho. When you fire the gun the compression ignites the oil, just like in a diesel engine. You gets combustion. Combustion in a confined space, with one exit point, with rifling along the way. You gets a firearm.

Now it's still only a few grain projectile and you get maybe an extra hundred fps (never had a chrono out while I was a kid mucking around in the woods). But it's pretty dang cool. Can get the pellets super sonic. Like I said, the trick is consistency with the amount of oil, or you'll affect the accuracy too much.

Your gun ain't rated for this. Big boy rules.
 
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Sheps

Woodsman
Jun 24, 2015
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Oh hell i got to try this.

How loud is it?
Gives you a decent crack but we never had any ear pro. You can work up sort of like "loads" for reloading ya know.

It's probably not neighbourhood friendly. Not the sort of thing you wonna do to get the sparrows out your bedroom window.
 

Hayata

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Mac11FA

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You would have thought he could have set up where it was quieter for this video!
 

chance

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Jul 15, 2015
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Very cool. I'll have to try this one day. I wonder how much difference there would be between wd40, 3in1 oil, and actual diesel fuel