I have used the .50 cal, 223gr aerotips with great success with 100gr & 150gr load of 777 pellets. I have never had the fragmentation issues other people have experienced. However, I have never tried to use the hollowpoint version of Powerbelts. With the areotip, all my shots have been passthroughs between 50 & 125 yards. Are most of the fragmentation issues occurring with the hollowpoint? Has anyone experienced fragmentation with the aerotip?