Many years ago while visiting the old family farm in NY I took the buckshot out of a factory shell and split them with a chisel, part way through. Then I crimped them on a piece of stranded wire and stuffed it into the shell.
It took several attempts but I finally whacked a woodchuck at about 20 yards with one of them as he left his burrow. It almost cut him in two, with just a shred of hide holding fore and aft together. The whistle as that string left sticks with me to this day, more than 4 decades later...
