RL16 is more in line with burn rates commonly used on 7/ 08s for lighter 120-140 gr bullets. Then again I figured RL26 would be slow for 6.5 creedmoor and people are doing great with it.. I would feel safe using listed data for 4831 as starting load data for RL26.
RL16 is also too slow for 120gr bullets in 7mm-08. Can't get enough in the case to match Varget. Not even close. RL16 would be good for 140gr or 160gr though.