Thats all i've used so far in my inline muzzleloader. 2 antelope, 4 deer, and 1 elk are dead because of the 300 grain XTP Mag. Most of the time they hold up. The elk I shot was a high shoulder shot then deflected to the spine then down through the lungs. When the XTP Mag hit the spine it separated the lead and jacket causing the jacket to wedge in the spine and the lead down through the lungs. I'm sure the Speer DC is a better bullet in the bonded category but even when the XTP Mag separates it still kills. Probably wont change from it.