One of the biggest pluses for using high BC bullets and I'm surprised it has not been mentioned is that because of the higher BC's with comparable SD's.
You can use lighter powder charges in 08 size 26 and 28 caliber cartridges to equal 06 in 27 caliber in field performance.

High BC bullets in 08 size hulls do the work with 10 to 15 grains less powder than 06 size. Hence, less recoil.

I can take a 260 Rem with a 125 NP and equal field performance of a 270 Win 130 NP.

If you can't do it with a 260 Rem or 708 Rem, you likely can't do it with a comparable 270 Win either.