My G/ma taught me two sayings....
She was born in Lithawania
'Those that laugh last...laugh the hardest'
And.....
The sun shines on every dogs azz some day.....
Hornady & others develop these new whizz bang cartridges
People buy 'em......Hornady makes $$$$$$$
My thoughts.....6.5CM has nothing over the 125 YO 6.5x55
Only a newer case design
I'm a 6.5x55 kinda guy