I personally would never use any other projectile in my ML other then the Powerbelts i love them. I hunt with a CVA Hunterbolt and i have killed 5 deer with this bullet and i have never had a proplem with penetration i have shot the deer at all kinds of ranges from 20 to 150 yards and they all have penetrated well. I use a 295 Grain Hollow point powerbelt with 100 grains of Triple seven pellets.