Intentional dieseling

darwin award material. beyond stupid.

pellets do not shoot well at high velocities, among a host of reasons to NOT DO THIS.

I had an inexpensive springer made by Mendoza in Mexico which was actually designed to use dieseling to get more velocity. There was an oil port in the compression tube and a felt washer to catch and hold the oil. I didn't want dieseling and it took me hundreds of shots before the dieseling slowed down. I also had to clean the bore every 100 or so shots as the carbon fouling would ruin accuracy.
The gun was built like a tank and had a good trigger. The Mendoza guns have gotten scarce as hardly any one is importing them any more.

I do NOT recommend you diesel for more power, it's hard on seals and mainsprings and produces extreme velocity variations.

Detonation, excessive dieseling, is not good but minor dieseling is normal and expected. It's more appropriately called combustion. Unless you completely degrease the compression chamber and piston and only use a lubricant with no flash point, your going to have combustion. Without it, your velocity will likely decrease significantly. 

It's not the higher velocity that makes the pellet unstable, it's the part where the pellet goes from supersonic to subsonic when the pellet becomes unstable. So at close range, you might see that it's just as accurate as a pellet in subsonic flight, but once it reaches the sound barrier, things start to go wrong.

The only reason why people do this, is because it makes an air rifle sound like a .22 rimfire. But you will eventually burn your piston seal, and breech seal. If you want that nice 'CRACK' sound, just use those alloy pellets.  

The design of the pelet is high drag to create stability. Super sonic speeds will not last long. The fool on the video shows the world what a bunch of moronic idiots are on YouTube.

1. Look at his shooting range, the back porch of an apparent
2 he shot into his wall, doh!
3 his choice of target and choice of backstop (liscense plates)
4. It ain't worth arguing about. Intentionally causing a gun to malfunction is a criminally stupid pass time. 

"JimNM";The fool on the video shows the world what a bunch of moronic idiots are on YouTube.

Click to expand...

Just on YouTube?  

For a short time Weihrauch marketed a HW35 version that included an ether injection system for supposedly controlled detonation and high power.

That thing was called the EL54 Barakuda. Guess why they pulled the plug on that thing. Yep, you guessed right; the seals were a major problem. ;-) 

Additionally, once there is fire, federal law classifies the gun as a firearm.