I discovered that the .54 cal rifle I bought a few days ago was loaded. I used the rod from one of my other rifles and a bullet puller to try and remove it. I could not budge it so to lubricate it I sprayed some PB Blaster down the bore. Still no luck. Then, I tried twisting the rod/puller. Crap! I accidentally unscrewed the puller from the rod! I have spent a lot of time trying to screw the rod back onto the puller, without success. Now to plan B. The nipple threads are 1/4-28 so I have grease fittings that will go in the nipple hole. I also went to my favorite hardware store and bought myself a new air blow gun with a rubber tip. Trying to decide which to try first. Air pressure would be quicker and less messy. Guess I'll give that a try. If it works, it will be interesting to see how much force the ball comes out with. I'll point in on a safe direction.