Dober - your bad, we ALL know a 270 is equal a 6.5/06 or near a 264 in like bbls.....and simpler! OH and factory ammo.
Never thought when a kid, my beloved 270 round would later be viewed by me as BORING.....that said it never stopped doing what it does well.
Norma does make 156 and 160s IIRC.
I DO agree, not much the heavies will do outside the 'It's so COOL looking w/long bullets' thing as the 130 TTSX shows to outperform all by good margin.
85-100s have good utility, BUT I'd just as soon run a 120 BT on yotes for wind, etc. Lights fly flat a ways, but then fall out and drift. Not so good on larger game either.
I feel 129-142 make any 6.5 shine. Good results are had on either side of that, but most/none do it much better.