For those of you who know what dieseling an airgun means, I know it's hard on the gun, and I won't make it a habit, but I was curious, and decided to try it.
So I broke out the chronograph and went to work. First - an explanation. "Dieseling" in this case means adding a fluid to the pellet that detonates, in a similar way that diesel fuel does when enough compression is applied. WD 40 acts much like diesel in this way.
My weapon of choice is my Crossman Quest spring air rifle - advertised to produce 1000 fps with PBA raptor ammo. I was using heavier Gamo Red Fire pellets though - 7.8 grains. I ran several of them through the gun to get an average velocity dry first, and they were running about 840 fps.
I then filled the skirt of one with WD 40, and fired that one over the chrony - and was amazed to hear a super - sonic crack like a .22. The chrony registered 1472 fps!
Have any of you tried this before?