The only two bullets I've ever used in the .270 Win. as has my oldest son who now owns the last .270 Win. I had are the Hornady 140 grain and the Nosler 150 PT. Both have been superbly accurate in all rifles I've owned in the caliber and have worked to perfection on all game shot with them. I've never fired a 130 grain bullet in the caliber even on paper. If you'll really study the ballistics of the different weight bullets you'll see no real world gain in flatness of trajectory with the 130s in spite of their higher velocity because of their lower BC. The 140 grain seems real close to the ideal weight for flat shooting but the 150 is so close as to be no real world difference.
If I had to chose one and only one bullet for the .270 Win. it would be the Nosler 150 PT. The newer bonded core plastic tipped bullets now out from Hornady, Nosler and Swift are the only thing that "might" sway me to change my mind.
Practice with the cheaper bullets but hunt with the best. In your entire life time you won't fire $100 worth of them on game. Why use less than the best on game when you look at it that way?
GB