Does anyone have experience with the Volquartsen Firefly bolt? I had one installed on my Ruger 22 charger and it worked well for a while. Lately it’s failing to feed with subsonic ammo. I thought it was designed to cycle subsonics reliably. 1 or 2 rounds and jams. Accuracy is unaffected. Even after a deep cleaning it still jams. It will cycle regular ammo. Thanks for any input, help and opinions.