Reply To: Intentional dieseling
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.