I reread my earlier post and want to clarify...bullets that kill game DRT I should not characterize as "poor results". Those Nosler BT's did the job completely and with ultimate confidence in me as the shooter, but with significantly greater destruction on game than the Partition's (by comparison). The Speer GS's also did the job, blowing completely through and killing the game, but only after allowing them to run far away, nearly losing some, and shot placements were equal to or similar to the NP's and BT's. So I do not recommend either a very strong, punch-through type, or frangible type bullet.
I shoot 150 gr. bullets exclusively in the 270. That doesn't mean that other weights (130, 140, 165, and 170) would be any better or worse. I got initially "into" the 150's when I started reloading and stayed with what works for me. Although I like 170 gr bullets in the Win and Marlin 30-30's.
My hunting partner shoots a Sako 243 (a smokin' hot and fast rifle/bullet combination) and uses 100 gr. NP's with excellent results on deer and hogs....both big ones and the little "footballs".