I use 75.8gr of RL26, Berger 215 hybrid, new nosler brass, CCI 250 primer - but I have a custom chamber allowing 3.70" COAL. In a factory chamber you should be a few grains lower.
this load shoots 1/2" moa out to 1,000 yards and is very consistent.
with RL26, I usually do my load development in 90*+ to make sure I'm not over pressure - then I confirm my velocity again during hunting season. I've never had a problem with over pressure when I do it this way - also use RL26 in 22, 6 and 6.5 Creedmoor with the same routine.
it's a great powder if you make sure you don't get too close to max to avoid an over pressure issue