I tried some in 30-06 and I worked up to a max 54.5gr/R-17 @ 2790fps with 180gr bullet book was 2762fps then I tried it with a 165gr bullet max load was 56.5/R-17 @ 2714fps book was 2874fps. Groups were OK but I didn't switch to it.
I'm using R-17 in a custom 284,280AI and 270WSM and I've been shooting alittle of it in a factory Rem 700 in 280 with 145gr bullets 2900fps plus. I've also used it in a 7x57 and 300WSM not much luck with it in those rifles.
I've been shooting R-17 about 2yrs now been a good power in the calibers I'm using it in. Well good luck