[CB103]

When I fire my nova, the barrel will occasionally refuse to return fully to the forward position and prevent balls from feeding properly. I've tried cleaning and oiling it, but the improvement seems only temporary.

Could there be some sort of gunk inside the barrel housing that I'm not getting out with just a good dousing, or might it be something else?

I'd like to open it up and check it out, but I haven't the slightest idea of how to go about it.

Thanks