The only one that actually pushes it, is the .260 Rem.
The 6.5x57 merely duplicates it, at least my new rifle uses 6.5x55 loads perfectly. Maximum listed 6.5x55 loads appear so in my rifle as well.
The 6.5x57 is my 4th 6.5 rifle.
I have 2, 6.5x55's, a Varberger and a M35 military rifle with shortened stock, along with a .260 I built some decades ago.
It and the new(to me) 6.5x57 shoot 1/2" and a bit better at 100 meters.
The .260 does it with all bullet weights from 85gr.Sierra HP's to 160gr. Sierra and Hornady RN's.
I'm considering on giving my nephew the Swede for Christmas.