The FFFg being finer grained pours easier in most powder and in Triple Se7en I honestly believes it ignites better in colder weather. Also because there is a small but appreciably noticeablepower difference, it will get things moving a little faster. I like it in my traditional rifles that shoot T-7 and in all my Whites other then the Bison. For some reason that Bison likes 2f powder. Some rifles like it, some hate it. All we can do is try.