The 270 is ok,,, same for the 30/06.
Both have there place in the firearms world.
10% here is not 10% there in the trade up & down with each firearm.
Funny thing about 270 is,,, there is none of them in competition match shooting that I've seen. If there is,,, I'm guessing it's alot less than 1% less the zero.
The 270 will never brake all the records the 30/06 has under its belt in world match compititions nor the amount of critters harvested all around the world.
The 270 is ok same as the 30/06.
This is just a IMO only as each persons believes in what they choose too.
Don