HBP, I think thatload sounds like a good one for the .270 for elk. I have found that in the .270 if you go any heavier than the 140 grn you lose velocity and energy. At first the energy in the 150 will bo better but the 14 will catch it and then surpass it. It basically comes down the the balistic coeficient of the bullets, Most of the 140 grn bullets in the .270 cal have a better BC than the hevier bullets. Which in turn gives them better down range energy and speed. I still believe that you need the most out of a gun as possible when you are going after elk. I have been luck and have shot 4 elk with my 7mm rem mag and two aout of the 4 only tookone shot the other 2 were dead they just didn't know it, so I put another round into them. Bottom line is elk are tough. But I think that 140 grn trophy bonded bear claw should perform very good, that is if it shoots good out of your rifle. That is a lot of what it comes down to, an accurate rifle with a good bullet with unough energy to do the job.
Buck