As Wes stated these bullets the key is finding the optimal powder for the particular caliber, these bullets can't be loaded with the traditional 296/h110 and expect to the get the most out of them, they don't build enough back pressure to make those slower powders burn correctly.

But as seen here they are accurate and from what has been seen already they kill will authority.

I don't have permission to post the photos here, but check this thread
http://forums.accuratereloading.com/eve/forums/a/tpc/f/4711043/m/2861098911/p/288