Introduction: .50 Cal Bullet Pen
Every time I need a pen I find none or one the doesn’t work. This pen scares people into not walking away with it. We’ll not really but hopefully it’ll be easier to find next time I’m scrambling for one.
To make it I drilled out the back of a 50 cal. shell. I cut the primer side of a 308 shell off with a pipe cutter. Next I dropped the 308 shell into the 50 cal. shell. I reduced the mouth of the 50 cal. shell until the 308 shell fit snug. Finally I soldered it together and glued the mechanical pieces in place.
The fourth picture shows it compared to a .45 cal shell which is the same diameter of my original bullet pen.