I'm with Gutpile on this one. The Leverevolutions shoot extremely well in all calibers, but they are a little soft. Think of them like a 45 caliber ballistic tip. If you treat them that way and avoid hard angles and bones you should do fine.
For the record I've played the the Flex Tip bullets in 30-30, 35 Rem, 45 Colt, 44mag, 444 Marlin, 45-70, and 450 Marlin. They worked great in the handguns which all of these were tested in. The bullets expanded well at the lower velocities. But when tested in rifles they opened up pretty fast, just like a ballistic tip.
Andrew