I use Rl-25 in my 300 RUM. Developed the load in 35-degree temps. Load is at max according to Nosler manual at 91.5 grains under a 200 AB bullet. The load was clocked at 3059 fps at 35-degrees
increases to 3119 fps in 85-degree temps with no pressure signs. So the variation is approx. 60 fps or so. POI doesn't seem different at 300 yards either. Hope this helps you.