There is an article about the Fusion bullets in the March/April 2005 Rifleshooter Magazine. It's quite interesting how these bullets are made and the appear to perform very well on deer sized game. There is a quote from a guy from Federal.... "As it is currently made, the Fusion will handle any plains game in the same class as North American deer and elk. But we designed it for deer, and as wall as it performs, we think it will become the standard for American deer hunters." I think the reason that he says it's designed for deer is because the skives in the bullet make it open up a bit faster than some of the other bonded bullets available. Looks like it would be a great deer bullet!