I have taken 2 elk with the 165 grain interbond light mag ammo. I chronyd them at 2950 from my 22" barrel and they shoot 1" groups most of the time. My buddy took two whitetails with the same load and one tipped over and other crawled about 5 yards. I cannot say how the SSTs terminal performance will be but I would expect it to be fast like the interbonds and capable of good accuracy.