I have read articles describing H4350, RL15 and RL17 in this cartridge. I have used all 3 and settled on H430 and Lapua 123gn Scenars in competions for the last year and a half. This year I decided to try Hybrid H100V, I have not been able to find any published loads with this powder. So far I have had excellent results compared to my standard loads using H4350. This powder is a dream to meter, and equivalent loads are about 108% (compressed), I was wondering if anyone here has experience with this powder.