I have a custom 28 Nosler that to date I have not been able to find the degree of accuracy I am satisfied with using all the usual powders and multiple bullets. I would like to try RL 26 with the Berger 180 and am looking for some guidelines for starting loads. Using both some interpolation as well as extrapolation I have come up with prob about 80 gr +/- from the Alliant web page. My chambering is such that it will accommodate the 195 gr Berger. Any suggestions, recommendations, guidance or prior experience for this load would be appreciated.

If you can use H1000, you can use RL26 and you'll probably see 50-75 fos more velocity. Your charge will most likely end up a couple grains less with RL26 than with H1000. So, I would start by looking at H1000 starting loads and subtracting 2 grains to start with RL26.

I am using RL-26 For some great loads. 77.0 grs of RL-26 with a 175 ELD-X at 3212 FPS good accuracy. I doubt you will make it to 80 grs. My experience with RL-26 is when you hit pressure you hit it hard so work up slowly.