I am aware and accept that the 6.5 CM is a great evolution for long range hunting!

However, I'm in the dark as to exactly how much better it is over some other hunting cartridges at longer ranges. Can someone who has the equipment run the numbers against wind and trajectory comparisons to say the .270 Win.?

.277 Nosler 140 AB
.496 BC
2950 fps

6.5 Nosler 140 AB
.509 BC
2700 fps

At what distance would the slower 6.5 catch the .277
for bullet drop ?
for wind drift ?