Someone told me the other day that they had asked this question on another forum, and reports so far were disappointing. The person said that the reports were they weren't exiting. But with a 270 it doesn't seem like it should be a huge problem.
Which winchester's did you use? Mine groups so-so with powerpoints, but loves the old silvertips (not the new ballistic ones, the original ones).
There's always federals if you don't like remington's, and I've had good luck with hornady ammo.