Pellet Gun APFSDS Ammo

I made these APFSDS Pellet gun shells and they work amazingly! I used my 1.77 caliber pellet gun and made it through 4 sheets of moderately thick metal a normal pellet could only dream on penetrating! To assemble just print the shell and take a household tack and remove the plastic and chop off the small bevel at the blunt end of the tack and shove it in the shell casing! no glue or adhesive needed. Hope you enjoy and have fun!