My Facebook “friend” Mark Taylor posted this video and it’s very useful. It involves a simple technique that turns a birdshot shell into a giant Glaser Safety Slug. This is a great money saver as anyone who shops for shotgun ammo will tell you. I just recently purchased a 25 round box of 2-1/2in 20 ga birdshot for $5.99 at my local academy sports. A five round box of 20 ga slugs at the same store cost about $4.50. If you use slugs for self – defense (something 20 ga users often do) this is a cheap, effective way to get self-defense rounds that won’t over penetrate. I assume that you can do this with all gauges, including the .410 though in that case buckshot would be much more effective than a slug of any type. Enjoy: