Some are reporting better performance on game with the Harvester Sabretooth which is similar in construction to the Powerbelt and as easy to load in tight barrels. I personally have not shot any on game yet. I have had Powerbelts go completely through elk lungs and exit so I have no idea what the bullet looked like other than it apparently was still in one piece. I do not shoot them at high velocities however which I think is one of the reasons they come apart for some. I was pushing the 295gr. with 90gr. of Black Mag'3 on the last one that went completelythrough.