I've used Hornady SST's alot in 7mm rem mag and in .243. I've had great results both in accuracy and terminal performance. On thing to keep in mind with SSTs are they are meant to come apart on impact, so if your shots are less then say 100 yds DO NOT aim for the shoulder. You have to put it through the ribs into the chest cavity. If you hit the shoulder bone the bullet will probably blow up and never reach the lungs.