Neil wrote:
I have tried that Bob and it marks the wood (indent). I guess I am
going to have to live with the slight indent. I have 4 walls off
panelling to put up and dont fancy finishing each brad with a punch.

Whatever, you are still going to have to fill the indent, don't matter if
the nailer or the punch caused it.

Try lubricating the firing mechanism. Air brad nailers don't work without
lubrication.

Dave