Bullet slicing hack 

After trying a hacksaw, a Dremel, and using needle nose pliers to turn the casing in a pipe cutter, I came up with this quick and easy hack for cutting the end off of a shell casing for making jewelry or other crafts.
A metal file works well to file down any rough edges on the cut.
I bought a bag of 100 Winchester 357 Magnum shell casings for under $25 at Bass Pro. I bought the pipe cutter at my local Ace Hardware store for around $10.
Be sure to wear safety glasses and at least one glove if not both.