I have been reloading the .270 for years, but I have bought a lot of factory ammo when on sale. One such item was a few boxes of WW 150 grain Power Pts. Accuracy was terrible in my M760, which normally shots anything good. But twenty years later I grabbed a couple of boxes of it to sight in a new scope on a M700. As I recall the advertised velocity was 2900 fps. Measured velocity over my Chrony at fifteen feet at 6200-foot elevation was 2727 fps from a 22-inch barrel. While the ballistics were disappointing the accuracy was good. Good enough in fact that I chose to hunt with that load and found it very effective on deer. I still have a few boxes of the same lot number. I am now hoarding it for hunting. I have been impressed with the WW Power Pt. bullet in other calibers.
I have had success with a number of factory loads in the .270 and have a lot of respect for the 150 grain Remington C-L. They are accurate and normally fully penetrate a deer on a crossing shot.
I have had success with other bullets, but the subject is factory loads.
The discussion has crept into barrel length. I was surprised that my Savage 110 in 270 Winchester has a faster 22-inch barrel then my Remington 700 with a 22-inch barrel. At one time I was thinking about buying a 24-inch factory take-off barrel for the M700. But I decided the cost may not bring any benefits, and I could be giving up an accurate 22-inch barrel.