Used to use it, and killed an elk with it with my 54 caliber T/C renegade.
You should be able to order it directly from Powerbelts:
http://www.powerbeltbullets.com/powerbeltbullets/copper-series-bullets.htmlMore expensive, but could not find any other retailers.
When I killed my bull, the bullet slipped between two ribs, went through the middle of the heart, and slipped through two ribs on the other side. 0.5 inch hold going in and 0.5 inch hole going out. No expansion. Killed him deader than a mackrel, but wondered what would have happened if it had only gone through lung.
