I got some JSB predator pellets to try in my .177 CFX and something really strange happened. While shooting this afternoon, three different times, the rifle acted as if it dry fired! It went Kapow! really loud!.. I thought I forgot to put in a pellet the first time, but it happened twice more in the same session. Once, I noticed that the skirt on the pellet was slightly misshapen and when I fired, it not only made the really loud noise, but I have no clue where the pellet went. Other than these three anomolies, the predators shot really well. Does anyone know why this is hapening? It seems that they are either getting some blow by or they sometimes go out really fast for some unknown reason.