If you like cleaning copper fouling frequently, and if yours is one of the rifles that shoots them well, an all copper bullet might work for you. I have used them on game from whitetails to kudu but I have not been completely satisfied. They worked, but none of my rifles gave really great accuracy with them. On hunts where I did a lot of shooting the fouling was a problem. After 15 rounds or so the fouling noticeably affected accuracy.

It has been my experience that the solid copper bullets do stay together very well and they penetrate well, but they need a fairly fast impact velocity to expand consistently.

Other guys have opposite opinions based on their experiences, but the all copper pill is not for me.