Ok I got a chance to get to the range today to check out a few loads using RL26 and Hornady 143 ELDX bullets in my 6.5 Creedmoor.
26" barrel Nosler brass BR2 Primers 2.890"OAL
I tested with a Magnetospeed installed. Three shot groups.

46gr. 2872 fps average vel. ES 13 SD 6.5
46.5gr 2908 fps average vel. ES 6 SD 3
47gr 2939 fps average vel. ES 10 SD 5.5
47.5gr 2954 fps average vel. ES 11 SD 5.85
48gr 2999 fps average vel. ES 12 SD 6.6
48.5gr 3029 fps average vel. ES 13 SD 6.65
49gr 3054 fps average vel. ES 19 SD 9.6 *
*this load was compressed I had to use a drop tube to get all the powder in.

48grs had best group of .216"ctc 49gr was not too bad at .567"ctc
group average center showed same point of impact from 47.5 gr. to 49 gr.
I am going to work on loads up and down from 48 gr. and try longer and shorter COAL.
No sign of pressure observed and when I popped the primers from the 48.5 and 49 gr loads they were just as tight as the lightest load.
I will do all the rest of my load work up without the Magnetospeed installed and check velocity after I have arrived at the most accurate load.
Then I move on to distance.
Also I have 200 of the Nosler Accubond Long Range 142 gr bullets coming in to check out with RL26.