When I bought my 6.5 PRC the two powders everyone was posting load data for was H1000 and Retumbo, a few guys that had RL26 had some great numbers too. I couldn’t find any of the 3 powders initially. Then one day powder valley had RL26 in stock and I snagged up 4 lbs. Load development was a joke, I worked up some loads starting at 55 gr with the 139 Scenar and worked my way up to 56 and stopped there. Sub 1/2” group, 3060 ish fps , no pressure and that was it!
