Hodgdon has load data for the FFF T7 right on the bottle for rifle use so I would not be afraid at all to use it. And I have, I love it. Not much fouling instant ignition and good down range results.

I have used it with up to 90g charges in my Scout and 80g in sidelocks.

Interesting to note if you read the load data from both the FF and FFF T7 there is not much difference in results. So I would say use either and you will be ok but use the FFF if you have ignition problems.