Yes, I roll my own, and purchase them commercially as well. I use both roll crimps and fold crimps. Most of the loads are in the 1200-1300 fps range, and are deadly effective. For the neophytes out there, ITX and Nice shot are both denser and heavier than steel, making them a much more efficient alternative. More expensive, yes, but you shoot less and cripple less, and you can use them in older guns if you want to, which can really add to the experience.