Before I started loading for my wife's 270 we used the 130gr Accubonds with no problem. Any Accubond or Partition load from 130-150gr will work. I have been impressed with the Hornady GMX and Nosler E-tip as well. Find one that shoots well and then taking the time to practice (more than you think you probably need) will make more impact than the "ultimate" bullet.
Last year I decided to change the load in my elk rifle and went to a different bullet/powder combo. Over the later part of the summer and early fall I put about 110rds through my 300 RUM validating trajectories and practicing out to 1200 yds. Then, opening morning I had a limited window to make a 450 yd shot on a 300" bull. After shooting this same rifle/load the months before and practicing to 1200 yds the 450 yd shot I was given seemed relatively easy.
https://www.midwayusa.com/product/2...270-winchester-140-grain-nosler-accubondhttps://www.midwayusa.com/product/8...-winchester-130-grain-accubond-box-of-20https://www.midwayusa.com/product/5...ter-150-grain-nosler-partition-box-of-20
