Next up, installing the adjustable nose weight. I decided to use a small pill bottle (which used to hold 10 Advil). I pried out the plastic insert from the cap, and found that if I substituted two disks cut from 90 pound index cardstock the cap would not be too loose but wouldn’t be quite as childproof as it was. I reamed a couple holes in the bottom end of the bottle, and three more in the nose cone. I also scuffed up the inside of the nose cone and outside of the bottle with 100 grit sandpaper. Then I put tape over the holes on the outside of the nose cone. I cut a centering ring from cardboard — mainly, I suppose, to keep the bottle upright while being glued. Then I put enough epoxy in the nose cone to reach over the holes in the bottle when I put it in.
So now I can add variable nose weight by putting clay or BBs or whatever into the bottle, adding some wadding to keep it in place, and screwing the top on.