I used em in my 7mag. They where accurate, made my longest shot with em called it no less. But as for terminal performance. The only animals that dropped to the shot where hit in the head or spinal column and I never one time recovered an intact bullet, didn't matter the range the core separated every time. Animals reactions went from taking off running like hell to not even a flinch. So if you want to use them their accurate as all getout, but you'll need to pick your shots. Myself if I wanted to do that I would hunt elk with my 243.