well I got the shell casing out. after all the help from here and talking to a gun smith friend of mine, here's what I did.
I put the nailer upright in a vise. then using a guide groove in the back of the thing I put a piece of wood in there to hold it open. then I used a drill at a good angle to nibble my way down into the casing. next I threaded a small screw in the hole and was able to just pull it out. the gun smith told me next time i use it dab a bit of oil on the shell so it will fall out easyer. that advice is free to every one here grin. jim
