I have always used 150g Nosler BT's in my 270 win and have taken over 50 deer with it in the last 20 or so years without a single bullet failure or lost animal. About 3 years ago I switched to a 270 WSM as my primary deer rifle and use 140g AccuBonds in it...also a great bullet but a marked increase in velocity. I have taken a dozen or so deer with that combo over the last 3 years and also, no bullet failures and no lost animal...great bullet. With a standard 270 I agree with RR...stick with the BT and you'll never be disappointed.