You've said that the accubond is more accurate...

How much flatter is the lighter bullet ..?? Perhaps an inch or two at 300 yards..??.. You'd never see that difference under field conditions...Hardly a significant advantage...

Either bullet, applied to the ribcage of an elk, will get the job done, but the more accurate, heavier, bonded core bullet would logically be the better choice...

A handloaded .280 with 160 grain bullets probably would match the performance of some 160 grain 7mm Mag factory loads...