I have mentioned it in many podcasts,
The benefits over a 130 are not gonna be as dramatic but over the 140 class of bullets, you see a big difference
Same with me and the 338, the 250s work better than the 300s, Speed wins.
Drop and drift is better when you include speed into the mix
Hell guys could sub-load the 6.5CM with 123s and find the sweet spot same as they do with the 6mms and balance the load to work better. Better BC and you can play with the velocity to balance recoil.
I like lighter bullets and speed over heavier ones with no velocity to speak off... 2800 is the beginning of the sweet spot, 2850 is your balance point, so if you are playing with a 6.5CM shooting any bullet under 2800, move to the next lighter better bullet and you'll see it make a difference