Like Dober use to say, you can shoot a bullet a hundred times and it will perform 99 times the same way. It's that 1 time that keeps you scratching your head. I've used the 115gr BT in 257cal and the 140's in the 7mm's all of my hunting career and never lost a deer...yet. Made a bad shot out of a 7mm w/an AccuBond and lost the only deer of my life. Poor judgement on my part...not the AB fault. powdr