Curious what the interest is. I mean, I understand burn rates, but you cannot really extrapolate anything from them other than to know you are in an approximate window of powders with a burn rate that matches the charachteristics of the cartridge you are loading. You can't garner starting or max charges from it. Anyway, load data for whatever powder you're interested in will be available from the mfg of said powder.
Alliant doesn't participate which such data so far as I've searched. In fact their website doesn't list any loads for 6.5 Creedmoor even though many shooters use RL16, RL17, and RL26. Humm....
There's a sticky somewhere here for Aliant data. LOL it's at the top of the page in this sub forum !!!!!http://www.65creedmoor.com/index.php?topic=6954.0
For RL26 I suspose you could go to quickload and find out how much powder it takes to reach 62000 psi with the Speer 140 SP and rate it yourself. My quickload data says 51 grains at about 105% fill to reach 62000 psi. That would put it at the bottom of the chart.
Why you gotta rain on the guys parade? LMAO
What does QL predict for burn % with 51 grains (WOW!!!) of RL-26 in a 29" bbl?