I'm running RL26 with 212 ELD-X with a MV of 2916 and an SD of 5.3. I don't usually shoot when it gets to be above 80-85 it's to warm for me and I don't hunt in those temps anyway. My primers are starting to flatten not bad and bolt lift is easy. Probably shouldn't say anything good about RL26 it's hard enough to find here in Washington.