In my experience, cast bullets are the only way to go in the .444. Lee's 310 grain FN bullets is a great performer, but a bit long for some rifles. I have a custom 285 grain FN that is also a very good .444 bullet. Beartooth Bullets http://www.beartoothbullets.com/is a good source for .444 bullets. Check out the technical articles on the .444 while you are there.