RL-16 & 143 ELD-X / 129 SST May 15, 2019, 04:18:48 PM Hi All,New to the 6.5 Creedmoor and have never used RL-16, 15 or 17 just a ton of RL-7 in other calibers.Looking for load data for this combo. I do have some QuickLoads data that shows about 41 grains as MAX for the 143 ELD-X.No info at all on the 129 SST.I have about 5 different reloading manuals, a member of AmmoGuide.com and have searched this forum and other sites. Have checked Alliant's page also for info. Most load data I found (which seems limited) runs between 36 and 44 grains, Would like to verify a safe range before I start dropping powder and create myself a nice over-charge! Also, looking for data on the 129 SST, if anyone has any. Early testing shows both my AR-10 and RAP like the 129 grainers.Thanks in advance for the help.